Hộp số EP-Cycloidal, bộ giảm tốc bánh răng Cyclo Pin,
The EP-Cycloidal Gearbox Cyclo Pin Wheel Reducer is a single-stage, horizontal foot-mounting cycloidal gear reducer engineered for continuous heavy-duty torque transmission across mining, construction, petrochemical, food processing, and general industrial machinery. Built around a cycloidal pin gear mechanism, it delivers rated output torque from 120 Nm up to 20,000 Nm across gear ratios from 9:1 to 87:1, with an input speed of up to 1,450 RPM and a mechanical efficiency exceeding 90%.
1. Technical Specifications — EP Cycloidal Gear Reducer
| Người mẫu | Kích thước lắp đặt | Spindle Dimension | Outline Dimension | Cân nặng |
|---|---|---|---|---|
| 1 | D1=134, D2=110, E=48, h=9, R=28, S=4 | do=35, d1=15, b1=5, c1=17, l1=25, D=160, L=202, L1=141 | Dual L=202, Gearmotor L1=141, B=160 | 8 kg |
| 2 | D1=160, D2=130, E=42, h=12, R=25, S=6 | do=33, d1=15, b1=8, c1=20.5, l1=35, D=180, L=218, L1=155 | Dual L=218, Gearmotor L1=155, B=180 | 13 kg |
| 3 | D1=200, D2=170, E=50, h=15, R=35, S=6 | do=43, d1=18, b1=10, c1=24.5, l1=40, D=230, L=269, L1=191 | Dual L=269, Gearmotor L1=191, B=230 | 26 kg |
| 4 | D1=230, D2=200, E=79, h=15, R=45, S=6 | do=63, d1=22, b1=14, c1=25, l1=45, D=260, L=333, L1=255 | Dual L=333, Gearmotor L1=255, B=260 | 38 kg |
| 5 | D1=310, D2=270, E=93, h=20, R=55, S=8 | do=79, d1=30, b1=16, c1=33, l1=54, D=340, L=399, L1=302 | Dual L=399, Gearmotor L1=302, B=340 | 93 kg |
| 6 | D1=360, D2=316, E=92, h=22, R=80, S=8 | do=98, d1=40, b1=22, c1=38, l1=65, D=400, L=470, L1=358 | Dual L=470, Gearmotor L1=358, B=400 | 138 kg |
| 7 | D1=390, D2=345, E=114, h=22, R=90, S=8 | do=110, d1=45, b1=25, c1=48.5, l1=70, D=430, L=522, L1=397 | Dual L=522, Gearmotor L1=397, B=430 | 160 kg |
| 8 | D1=450, D2=400, E=112, h=30, R=110, S=10 | do=129, d1=50, b1=35, c1=53.5, l1=80, D=490, L=581, L1=440 | Dual L=581, Gearmotor L1=440, B=490 | 240 kg |
| 9 | D1=520, D2=455, E=170, h=35, R=129, S=12 | do=160, d1=55, b1=40, c1=70, l1=100, D=580, L=698, L1=529 | Dual L=698, Gearmotor L1=529, B=580 | 370 kg |
| 10 | D1=590, D2=520, E=174, h=40, R=149, S=14 | do=180, d1=60, b1=45, c1=76, l1=120, D=650, L=806, L1=608 | Dual L=806, Gearmotor L1=608, B=650 | 622 kg |
| 11 | D1=800, D2=680, E=210, h=45, R=184, S=16 | do=210, d1=70, b1=55, c1=100, l1=140, D=880, L=1042, L1=811 | Dual L=1042, Gearmotor L1=811, B=880 | 1210 kg |
| Người mẫu | Mounting dimension | Spindle Dimension | Kích thước tổng thể | Cân nặng |
| 09 | 134 110 35 | 10 3 M8 4 22 6 24.4 30 25 160 | 202 141 | 6 |
| 10 | 160 140 40 | 12 4 M8 6 30 8 33 35 22 190 | 215 155 | 13 |
| 11 | 200 170 60 | 12 4 M10 6 35 10 38 45 35 230 | 274 191 | 22 |
| 12 | 230 200 70 | 15 5 M10 6 45 14 48.5 64 45 260 | 321 255 | 40 |
| 13 | 310 270 80 | 20 5 M12 8 55 16 59 75 55 340 | 310 302 | 75 |
| 14 | 360 320 99 | 22 5 M12 8 65 18 69 92 60 400 | 469 358 | 120 |
| 15 | 450 400 115 | 30 5 M16 10 75 30 95 108 75 490 | 584 443 | 180 |
| 16 | 520 455 173 | 35 8 M20 12 85 40 100 130 80 580 | 701 527 | 380 |
| 17 | 590 520 180 | 40 8 M20 12 95 50 120 165 100 650 | 806 608 | 611 |
| 18 | 800 680 215 | 45 10 2-M20 14 105 55 130 200 120 880 | 1042 811 | 1170 |
2. Five Key Facts — EP Cycloidal Gear Reducer at a Glance
- Gear Ratio Range: Single-stage ratios of 9:1, 11:1, 17:1, 23:1, 29:1, 35:1, 43:1, 59:1, 71:1, and 87:1 — covering the vast majority of industrial speed-reduction requirements.
- Torque Capacity: Rated output torque from 120 Nm (small frame) up to 20,000 Nm (large frame), with a peak overload capacity of 3× rated torque for short-duration shock loads.
- Mechanical Efficiency: Single-stage efficiency of 90–93%, reducing energy waste and operating costs over equipment life cycles.
- Protection & Mounting: IP55 ingress protection as standard; horizontal foot-mounting (H-type) with optional flange-mount adapters available for OEM integration.
- Certifications: Manufactured under ISO 9001:2015 quality management; product meets CE (European conformity) and can be supplied with third-party inspection reports from SGS or TÜV upon request.
3. Five Key Advantages of the EP Cycloidal Gear Reducer
When procurement engineers in Colombia and across Latin America evaluate a cycloidal gear reducer for long-term industrial deployment, five performance differentiators consistently define whether a unit earns a spot in the bill of materials or gets replaced within the first operational year. The EP-Cycloidal Gearbox Cyclo Pin Wheel Reducer has been designed — and field-verified — to excel in each of these critical areas.
1. Compact Body, Exceptional Torque Density
Unlike traditional spur or helical gear reducers that require large housings to achieve comparable output torque, the cycloidal gear design concentrates all reduction into a single eccentric disc stage. The result is a compact footprint that transmits torques up to 20,000 Nm — making this cycloidal gear reducer an ideal choice wherever space is limited but load demands are high, such as in Colombian mining conveyor systems and port crane drives.
2. Exceptional Shock Load Resistance
The distributed multi-tooth contact characteristic of the cycloidal pin gear mechanism means that load is shared simultaneously across approximately one-third of all pin teeth at any given moment. This load distribution absorbs sudden shock and vibration far more effectively than standard involute gearing, delivering a 3× peak overload rating — a critical attribute in industries like Colombian cement production and aggregate crushing, where drive systems experience routine start-stop shock cycles.
3. Low Backlash & High Repeatability
The EP cycloidal gear reducer achieves backlash values below 1 arc-minute in standard builds, rising to sub-arc-second precision in special-order configurations. This makes it a competitive cycloidal gear reducer for robotics applications, CNC indexing tables, and automated packaging lines that require precise angular positioning — markets that are expanding rapidly across Colombia's growing manufacturing sector.
4. Long Service Life with Low Maintenance
Rolling-element bearings replace sliding contacts at every critical interface. All gear surfaces undergo carburizing and case hardening to HRC 58–62, ensuring hardened tooth flanks that resist pitting, abrasion, and fatigue even in harsh tropical environments typical of coastal and Andean industrial zones in Colombia. Oil changes at 4,000-hour intervals keep downtime minimal.
5. Versatile OEM & Direct Replacement Supply
As a custom cycloidal gear reducer manufacturer, we support OEM shaft modifications, special mounting flanges, non-standard gear ratios, and stainless-output shafts for food-grade environments. The EP series is dimensionally compatible with many Sumitomo cycloidal gear reducer frame sizes, making it a proven drop-in option for plant engineers needing cycloidal gear reducer replacement parts or complete unit upgrades without reengineering mounting brackets.
4. How a Cycloidal Gear Reducer Works — The Cycloidal Gear Mechanism Explained
Understanding the cycloidal gear mechanism helps engineers make confident procurement decisions and simplifies troubleshooting in the field. The operating principle of a cycloidal pin gear reducer differs fundamentally from that of parallel-axis helical or worm gear units, and that difference is precisely what gives it superior load-sharing and shock absorption properties.
At the core of every cycloidal gear speed reducer is an eccentric input shaft that drives one or two cycloidal discs — also called epitrochoidal plates — in a planetary-like rolling motion inside a ring of cylindrical pins (the pin wheel). The outer profile of each cycloidal disc is precisely machined as a modified trochoid curve, designed so that as the disc orbits, its teeth mesh continuously with the pin wheel pins. Because the disc teeth and pins are always in contact across roughly one-third of the pin circle simultaneously, load is never concentrated on a single tooth pair as it would be in standard involute gearing. This is the root cause of the cycloidal planetary gear speed reducer's extraordinary torque density and shock resistance.
The rolling motion of the cycloidal disc is translated to useful shaft rotation through a set of output pins (or rollers) passing through matching holes in the disc. As the disc orbits eccentrically, the output pin set is driven at a speed precisely equal to one tooth difference per revolution — this is what produces the high reduction ratio in a single, compact stage. A single-stage cycloidal reducer with a 17-tooth disc rolling inside an 18-pin ring, for example, produces a 17:1 speed reduction with the rotational direction reversed relative to the input.
This ingenious cycloidal gear design means there are no long gear trains, no multiple-stage loss stacking, and no fragile thin-tooth tips susceptible to edge loading. The smooth, rolling contact also generates far less heat than sliding-contact worm gear reducers under comparable torque loads — reducing oil operating temperatures by 15–25°C in typical installations and significantly extending lubricant service intervals.
5. Materials & Metallurgy — What Makes the EP Cycloidal Reducer Last
Material selection and heat treatment are where long-term reliability is either built or compromised. Every major load-bearing component in the EP cycloidal gear reducer follows a defined metallurgical specification:
| Thành phần | Material Grade | Heat Treatment | Surface Hardness |
|---|---|---|---|
| Đĩa Cycloidal | 20CrMnTi (SAE 8620 equivalent) | Carburizing (0.8–1.2 mm depth) + quench | HRC 58–62 |
| Pin Wheel Pins | GCr15 (AISI 52100 bearing steel) | Through-hardened + ground | HRC 60–64 |
| Trục đầu ra | 42CrMo (AISI 4140 equivalent) | Quench & temper | HB 260–300 |
| Eccentric Input Shaft | 20CrMnTi / 40Cr | Induction hardened journals | HRC 54–58 |
| Housing (Casing) | HT250 gray cast iron | Stress-relieved annealing | HB 170–240 |
| Output Pin Rollers | GCr15 bearing steel | Through-hardened | HRC 60–62 |
| Seals | NBR (standard) / FKM (high-temp option) | — | Rated to 120°C / 200°C oil temp |
6. Application Scenarios — Where the EP Cycloidal Gear Reducer Performs Best
The EP-Cycloidal Gearbox Cyclo Pin Wheel Reducer serves a diverse spectrum of industries. Below are the most common and technically demanding applications encountered by procurement teams and plant engineers, particularly across Colombia's primary industrial sectors and throughout Latin America.
Mining & Mineral Processing
Colombia's coal, gold, and emerald extraction industries demand drives that can handle continuous overloads, abrasive dust, and unpredictable impact loads. The cycloidal gear speed reducer's 3× shock load rating and IP55 (or IP65) protection make it the standard choice for belt conveyor drives, bucket elevator drives, and vibrating screen exciter shafts in open-pit and underground mining environments at elevations from sea level to over 3,000 m.
Petrochemical & Oil Pipeline Stations
Pump drives along Colombia's Oleoducto Central and associated pipeline infrastructure require drives that operate reliably in high-humidity tropical conditions and resist the vibration induced by reciprocating and centrifugal pumps. The low backlash and smooth speed regulation of the cycloidal pin gear reducer directly improves flow stability and reduces pipe fatigue at connection points — a critical factor for operators managing kilometers of above-ground pipeline across challenging terrain.
Cement & Construction Materials
Rotary kiln drives, raw mill drives, and clinker cooler conveyor drives are among the most demanding gearbox applications in any industry. The cycloidal gear reducer handles the sustained high-torque, low-speed output required without the periodic tooth failure issues that plague inadequately sized helical units. Major cement plants in Cundinamarca and Valle del Cauca routinely specify cycloidal gear reducers for kiln auxiliary drives as a proven reliability upgrade.
Chế biến thực phẩm và đồ uống
Mixer drives, filling machine turntables, and packaging line indexers require precise, repeatable positioning combined with easy washdown access. With optional stainless-steel output shafts, FDA-compliant seals, and the ability to operate at low output speeds without overheating, the EP cycloidal gear reducer meets INVIMA hygienic equipment standards applicable in Colombia's food manufacturing sector without requiring oversized cooling systems.
Robot và Tự động hóa công nghiệp
As a cycloidal gear reducer for robotics applications, the EP series serves joint actuators in collaborative robots, Cartesian gantry systems, and rotary indexing tables. Sub-arc-minute backlash in standard builds — or sub-arc-second with precision preloading — makes this cycloidal gear reducer the technically preferred solution in Colombian automotive assembly plants and electronics manufacturing facilities adopting Industry 4.0 automation strategies.
Sugar Cane & Agricultural Processing
Colombia is one of Latin America's largest sugar producers. Cane crusher drives, juice extraction roller drives, and evaporator agitator drives all present the combination of high continuous torque, high humidity, and starchy-fibrous contamination that makes cycloidal reducers far more durable than single-stage worm gearboxes. The sealed oil-bath lubrication of the EP cycloidal reducer eliminates the periodic re-greasing that open gearcases require in these environments.
7. Regulatory Compliance — Colombian & International Standards for Industrial Gear Reducers
Procurement engineers sourcing a cycloidal gear reducer for facilities operating in Colombia, the United States, the European Union, or other regulated markets need to confirm regulatory alignment before committing to supply. The following overview addresses the primary standards and legal frameworks relevant to this product category.
Colombia — ICONTEC / NTC Standards
In Colombia, industrial mechanical equipment including gear reducers falls under general machinery safety guidelines aligned with the Ministerio de Trabajo's industrial safety code (Decreto 1072 de 2015 — Decreto Único Reglamentario del Sector Trabajo). While Colombia does not yet publish a gear-reducer-specific NTC (Norma Técnica Colombiana), the applicable framework mandates that mechanical transmission components installed in workplaces comply with general machinery guarding requirements under NTC 1892 and that electrical-coupled drives comply with RETIE (Reglamento Técnico de Instalaciones Eléctricas), particularly when integrated motor-gearbox packages are considered. Procuring ISO 9001:2015-certified gear reducers — as the EP series is — is the recognized best practice to demonstrate due diligence under Colombian SGSST (Sistema de Gestión de Seguridad y Salud en el Trabajo) frameworks.
United States — AGMA, ANSI, and OSHA
In the US market, the American Gear Manufacturers Association (AGMA) publishes ANSI/AGMA 6000 and AGMA 6001 standards for enclosed gear drives. Buyers sourcing a cycloidal gear reducer for use in US-regulated facilities should request a gear unit rated to AGMA service class and confirm OSHA 29 CFR 1910.219 compliance for all power transmission guarding. Our EP cycloidal gear reducer can be supplied with AGMA-equivalent documentation upon request.
European Union — Machinery Directive & CE Marking
The EU Machinery Directive 2006/42/EC requires that gear reducers incorporated into machinery meet essential health and safety requirements. CE conformity declaration covers the EP unit as a partly-completed machine (sub-assembly); integrators must complete the machinery safety assessment at system level. ATEX Directive 2014/34/EU applies to units deployed in explosive atmospheres — special ATEX-compliant variants are available for petrochemical facilities.
International — ISO & IEC
The EP series is manufactured under ISO 9001:2015 quality management. Gear load capacity calculations are performed per ISO 6336 (gear strength), bearing life per ISO 281 (L10 method), and vibration levels are verified against ISO 10816 limits for rotating machinery. IP protection ratings comply with IEC 60529. These are the internationally recognized baselines accepted by procurement departments in Mexico, Ecuador, Peru, Brazil, the UAE, and Southeast Asia — all active export markets for this product line.
8. Installation Guide — Step-by-Step for the EP Cycloidal Gear Reducer
Following a correct installation procedure is the single most impactful step a maintenance engineer can take to extend service life. Poor shaft alignment is responsible for the majority of premature bearing failures in speed reducer applications worldwide. The following steps apply to the standard horizontal foot-mount configuration.
- Pre-Installation Inspection: Verify the unit was not damaged in transit. Rotate the input shaft by hand to confirm smooth rotation. Check oil level — units are shipped dry; fill with VG220 gear oil to the indicated fill mark before first start.
- Base Preparation: The mounting surface flatness must not exceed 0.05 mm/100 mm. Use a precision straightedge and feeler gauges. Grouted baseplate installations are preferred for drives above 5.5 kW.
- Căn chỉnh trục: Align the cycloidal gear reducer input shaft to the motor output shaft within 0.05 mm parallel misalignment and 0.02°/100 mm angular misalignment. Use a dial indicator or laser alignment tool. Incorrect alignment accelerates eccentric bearing wear.
- Coupling Installation: Press couplings onto shafts using a hydraulic press or induction heater — never hammer, as impact loads damage cycloidal disc bearings. Key engagement length must meet DIN 6885 specifications for the shaft diameter.
- Mounting Bolt Torque: Tighten foot-mount bolts to the torque values specified in the product manual (typically M16 grade 8.8 bolts to 190 Nm). Use spring washers or thread-locking compound on fasteners subject to vibration.
- First Start-Up Check: Run the drive unloaded for 30 minutes, monitoring for abnormal noise, vibration, or oil leaks. Check oil temperature at the housing vent plug — normal operating temperature is 15–30°C above ambient. High altitude installations (Bogotá, Medellín elevated sites) may show slightly higher thermal readings due to reduced air density; confirm this is within the thermal model predictions.
- Load Ramp-Up: For high-inertia loads (large conveyors, crushers), start at 25% of full load and increase progressively over 4–6 hours during the initial run-in period to allow gear and bearing surfaces to seat properly.
9. Về chúng tôi
We are a vertically integrated industrial gearbox manufacturer with over two decades of production experience in cycloidal gear reducer design and manufacture. Our production facilities cover 35,000 m² of CNC machining, heat treatment, precision gear grinding, and automated assembly capacity. Every cycloidal gear reducer that leaves our factory has undergone a no-load run test, a full-load torque test at rated RPM, and a dimensional verification against ISO calibrated gauging. Our engineering team includes specialists in cycloidal gear design, gear fatigue analysis, and tribology, ensuring that product development keeps pace with evolving industry demands. We serve customers in over 60 countries through a network of authorized regional distributors and direct factory accounts, with Spanish-language technical support available for the Colombian and Latin American market.
We operate under ISO 9001:2015 certification, maintain active CE product declarations for all export product lines, and participate in third-party annual factory audits by SGS. Our in-house metrology laboratory is equipped with coordinate measuring machines (CMM), gear testing centers, and vibration analysis rigs — the same quality infrastructure that supports both standard-catalog cycloidal gear reducers and the custom cycloidal gear reducer builds we deliver for OEM customers.
Xưởng
Field Notes from Our Customers — Engineer Perspectives
"We had been running a competitor's cycloidal gear reducer on our bucket elevator at the Cerrejón coal terminal for about three years before a bearing failure during a peak shift cost us nearly two days of downtime. Our maintenance chief proposed trialing these EP units as replacement cycloidal gear reducers. We installed two units in February and ran them straight through the rainy season in La Guajira without a single issue. What stood out to me as the specifying engineer was the dimensional interchangeability — we didn't have to redesign the motor bracket or reconfigure the coupling guard at all. The VG220 oil specification also matched our existing lubricant inventory, which simplified stocking. Overall I'd put these units on the approved vendor list without hesitation for our next procurement cycle."
— Carlos M., Maintenance Engineering Manager
Mining Terminal, La Guajira Department, Colombia
Application: Bucket elevator drive — cycloidal gear reducer replacement
"Our team was integrating a new rotary indexing station into an automotive headlamp assembly line here in Bogotá. The positioning requirement was tight — we needed repeatable angular steps of 45° with a cycle time of under 1.2 seconds and no more than 3 arc-minutes of backlash at the output. We evaluated several gear technologies including planetary units and strain-wave gears, but the cost-performance ratio of the cycloidal pin gear reducer was the deciding factor. Installation was straightforward and the technical documentation was available in Spanish, which reduced our engineering review time considerably. After running 4 million cycles in the first six months, there's been no measurable backlash growth. That's the real proof of concept for us."
— Andrés F., Automation Systems Engineer
Automotive Assembly Plant, Cundinamarca, Colombia
Application: Cycloidal gear reducer for robotics / precision indexing
10. Related Products — Complete Your Drive Train from One Supplier
A cycloidal gear reducer is one component in a complete power transmission system. We also manufacture and supply the upstream and downstream components that connect to your reducer, enabling a single-source procurement strategy that simplifies vendor qualification, harmonizes warranty terms, and reduces lead-time risk — all priorities for engineering and procurement teams managing tight project schedules in the Colombian and Latin American industrial market.
Hộp số hành tinh
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High precision worm gearbox
Câu hỏi thường gặp
Q1. How should a cycloidal gear reducer be stored if it will not be installed immediately after delivery to our warehouse in Bogotá?
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For storage up to 12 months: keep the unit in its original sealed packaging, store horizontally in a clean dry warehouse at 10–40°C, and rotate the input shaft by hand once per month to prevent bearing false brinelling. Fill the gear chamber to the maximum oil mark prior to storage to minimize internal corrosion from condensation. For storage beyond 12 months or in coastal high-humidity environments (Barranquilla, Cartagena, Buenaventura), drain and replace the oil before installation and inspect internal surfaces for rust using an endoscope through the oil-fill port. If corrosion is found, contact our technical support team before proceeding.
Q2. How does a cycloidal gear reducer differ from a standard planetary gear reducer, and which should I specify for my conveyor drive in Colombia?
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Both cycloidal and planetary gear reducers achieve high reduction ratios in compact housings, but the mechanisms differ significantly. A planetary reducer relies on multiple involute planet gears engaging a sun gear and ring gear simultaneously; a cycloidal pin gear reducer uses an epitrochoidal disc rolling against a pin wheel. The key practical difference is that the cycloidal design handles shock loads better (3× rated overload vs. typically 2× for planetary) and achieves lower backlash without special preloading hardware. For belt conveyor and chain conveyor drives in Colombian mining and port operations — where start-stop inertia loading is routine — the cycloidal gear speed reducer is the more conservative and field-proven specification choice.
Q3. Can your cycloidal gear reducer work as a direct replacement for a Sumitomo cycloidal gear reducer unit already installed in my plant?
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Yes — the EP series is dimensionally cross-referenced to major Sumitomo cycloidal gear reducer frame sizes. To confirm direct interchangeability, please provide the Sumitomo model number (typically formatted as SM-CYCLO or CNHM series) along with the existing mounting hole pitch circle, shaft diameter, keyway dimensions, and output shaft length. Our technical team will issue a dimensional comparison within 24 hours. In the majority of replacement projects, no bracket modification is needed. Where shaft dimensions differ slightly, we can supply a transitional coupling adapter.
Q4. What gear oil type and change interval does the EP cycloidal gear reducer require, and is synthetic oil compatible?
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Standard fill is VG220 mineral gear oil (ISO 6743-6 classification GL-1). Synthetic VG220 PAO (polyalphaolefin) is fully compatible and is recommended for ambient temperatures below 0°C or above 35°C. With mineral oil the change interval is 4,000 hours or 12 months, whichever comes first. With synthetic PAO oil the interval extends to 8,000 hours. All oil changes should include inspection of the magnetic drain plug for ferrous debris — excessive metallic particles are an early indicator of bearing or gear surface distress.
Q5. Where can I find a reliable cycloidal gear reducer OEM supplier in the Midwest or for the North American market, and do you export to the USA?
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We export to the United States and Canada through authorized distributor partners in Texas, Illinois, and Ontario. Our cycloidal gear reducer OEM supply program for North American customers includes AGMA documentation, US standard shaft and keyway dimensions (ANSI B17.1), and English-language technical manuals. Minimum order quantities start at single units for standard catalog items. OEM program pricing and lead times are available from our North American sales contact; please use the inquiry form on this page for a rapid response.
Q6. How do I size a cycloidal gear reducer correctly for a new belt conveyor installation in a Colombian coal processing plant?
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Correct sizing requires four input parameters: (1) required output speed in RPM; (2) design output torque in Nm based on conveyor belt pull force and pulley radius; (3) duty cycle — whether the drive runs continuously or with frequent starts and stops; and (4) the daily operating hours and ambient temperature range. Apply the appropriate service factor (SF) from the AGMA or ISO load spectrum guide — typically SF = 1.25 for 10-hour continuous service, increasing to SF = 1.75 for 24-hour multi-start duty. Multiply your calculated output torque by the service factor and select the next catalog frame size upward. Our engineering team provides free sizing assistance for registered OEM accounts and new project enquiries.
Q7. What are the most common failure modes of a cycloidal gear reducer, and how can I detect them early before a breakdown?
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The three most common failure modes are: (1) eccentric bearing fatigue — typically from misalignment or oil contamination, detectable by rising vibration levels or metallic debris on the drain plug; (2) cycloidal disc surface pitting — caused by inadequate lubrication or sustained overloading beyond the rated service factor, detectable by a rhythmic noise at output frequency; and (3) output shaft seal leakage — caused by shaft runout or lip seal age hardening, detectable visually. Monthly vibration checks with a portable accelerometer and quarterly oil sampling for particle count analysis catch 85% of developing faults before they become unplanned stoppages.
Q8. Do you supply cycloidal gear reducer replacement parts, and is it more cost-effective to overhaul or replace the complete unit?
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Yes, we supply a complete cycloidal gear reducer replacement parts range including cycloidal discs, pin wheel assemblies, eccentric bearings, output pin rollers, shaft seals, and housing gaskets — individually or as service kits. As a general guideline, if the housing is undamaged and the output shaft shows no scoring, an overhaul using replacement parts at approximately 30–40% of the cost of a new unit is the better economic choice. If the housing is cracked or the output shaft shows twist marks from a locked-shaft event, complete unit replacement is recommended. Our parts department can advise based on photos and the unit serial number.
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