Sumitomo Cyclo® 6000 Speed Reducers & Geared Motors
The Sumitomo Cyclo® 6000 Speed Reducer Series (featured model: CNHM2-6125-59 1.5 kW 1:59 Ratio) is Sumitomo's flagship cycloidal drive platform, engineered for severe industrial applications requiring extreme reliability, high torque density, and ultimate shock-load resistance. Operating on smooth **rolling contact between cycloidal discs and stationary pin gears**—rather than sliding gear tooth shear stress—Cyclo 6000 reducers withstand **momentary shock loads up to 500%** without structural tooth breakage. Constructed with high-rigidity cast-iron housings, precision-ground bearing steel components, and high thermal capacity lubrication sumps, Cyclo 6000 units achieve single reduction ratios from 6:1 to 87:1, double reduction up to 7,569:1, and multi-stage reduction exceeding 1,000,000:1. Available in foot-mounted (CNHM / CHHM), flange-mounted (CVMW / CVVM), and shaft-mounted configurations with C-face or integral motor options. WE DRIVE HONGKONG LIMITED provides technical sourcing, model decoding, and 100% direct mechanical replacement support for legacy **Sumitomo Cyclo 3000 and Cyclo 4000** speed reducers.
Technical Specifications
| Featured Model | CNHM2-6125-59 (1.5 kW Motor Input, 4-Pole 400V 50Hz, Frame 6125, 1:59 Single Reduction Ratio, Foot Mount B3) |
|---|---|
| Brand / Manufacturer | Sumitomo Drive Technologies (Sumitomo Heavy Industries) |
| Product Series | Cyclo® 6000 Series Shock-Resistant Cycloidal Speed Reducers & Geared Motors |
| Frame Sizes Covered | 6090, 6095, 6100, 6105, 6110, 6115, 6120, 6125, 6130, 6135, 6140, 6145, 6160, 6165, 6170, 6175, 6180, 6185, 6190, 6195, 6205 to 6275 |
| Output Torque Capacity | 100 Nm to 68,000 Nm (885 lb-in to 600,000 lb-in Continuous Output Torque) |
| Reduction Ratio Range | Single Reduction: 6:1 to 87:1; Double Reduction: 102:1 to 7,569:1; Triple Reduction: up to 1,000,000:1 |
| Shock Load Resistance | 500% Momentary Overload Capacity via Rolling Cycloidal Discs (Zero Gear Shear Failure) |
| Mounting Architecture | CNHM / CHHM Foot Mount, CVMW / CVVM Vertical Flange Mount, C-Face Adapter, Solid Output Shaft |
Documentation & Resources
Sumitomo Cyclo 6000 Frame Size, Torque & Power Selection Matrix
Complete selection matrix for Sumitomo Cyclo 6000 speed reducers. Review frame sizes, motor power ratings, allowable torque outputs, single-stage ratios, and model naming conventions:
| Cyclo Frame Size | Motor Power (kW) | Max Output Torque (Nm) | Single Stage Ratios (i) | Sumitomo Model Code Example | Mounting Style |
|---|---|---|---|---|---|
| Frame 6090 / 6095 | 0.2 kW - 0.4 kW | 150 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CNHM05-6095-29 | Foot B3 / Flange B5 |
| Frame 6100 / 6105 | 0.4 kW - 0.75 kW | 350 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CNHM05-6105-43 | Foot B3 / Flange B5 |
| Frame 6110 / 6115 | 0.75 kW - 1.5 kW | 600 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CNHM1-6115-43 | Foot B3 / Flange B5 |
| Frame 6120 / 6125 | 1.5 kW - 2.2 kW | 1,100 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CNHM2-6125-59 | Foot B3 / Flange B5 |
| Frame 6130 / 6135 | 2.2 kW - 3.7 kW | 1,800 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CHHM3-6135-29 | Foot B3 / Flange B5 |
| Frame 6140 / 6145 | 3.7 kW - 5.5 kW | 2,800 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CHHM5-6145-43 | Foot B3 / Flange B5 |
| Frame 6160 / 6165 | 5.5 kW - 11.0 kW | 5,500 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CHHM10-6165-29 | Heavy Duty Foot B3 |
| Frame 6180 - 6275 | 15.0 kW - 132.0 kW | 10,000 - 68,000 Nm | 6, 11, 15, 21, 29, 43, 59, 87 | CHHM20-6185-43 | Heavy Duty Cast Iron |
Legacy Sumitomo Cyclo 3000 / 4000 to Cyclo 6000 Replacement Guide
Obsolete Sumitomo Cyclo 3000 and Cyclo 4000 speed reducers can be directly replaced with current Cyclo 6000 series reducers with 100% mechanical interchangeability:
| Legacy Sumitomo Cyclo Code | Legacy Power & Frame | Current Cyclo 6000 Equivalent | Key Upgrades & Operational Advantages |
|---|---|---|---|
| SM-Cyclo 3115 / 4115 | 0.75 kW / 1.5 kW (Frame 115) | Sumitomo CNHM1-6115 / CNHM2-6115 100% Direct Drop-In | Identical shaft height and foot bolt centers, upgraded high-fatigue bearing steel. |
| SM-Cyclo 3125 / 4125 | 1.5 kW / 2.2 kW (Frame 125) | Sumitomo CNHM2-6125 / CNHM3-6125 100% Direct Drop-In | 500% shock load protection, leak-free triple-lip oil seals, updated thermal dissipation. |
| SM-Cyclo 3145 / 4145 | 3.7 kW / 5.5 kW (Frame 145) | Sumitomo CHHM5-6145 / CHHM7.5-6145 100% Direct Drop-In | Matches standard B3 foot bolt hole centers, direct replacement for heavy conveyors & mixers. |
| SM-Cyclo 3165 / 4165 | 7.5 kW / 11.0 kW (Frame 165) | Sumitomo CHHM10-6165 / CHHM15-6165 100% Direct Drop-In | Ductile iron housing upgrade option, continuous rolling contact without gear tooth shear. |
Expert Technical Sourcing & System Integration Notes
When replacing older Sumitomo Cyclo 3000/4000 speed reducers on heavy belt conveyors, wastewater clarifiers, chemical agitators, or mining feeders, switching to current Cyclo 6000 series reducers delivers immediate operational advantages: 500% momentary shock load protection without gear teeth breakage, rolling contact friction reduction, high fatigue resistance, and complete physical interchangeability without altering mounting plates or coupling connections. Simply provide us with your existing reducer nameplate serial number or complete model designation (e.g., CNHM2-6125-59 or CHHM5-6145-43), and our technical engineering team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- CNHM05-6095-29 (0.4 kW 1:29 Ratio)
- CNHM05-6105-43 (0.4 kW 1:43 Ratio)
- CNHM1-6115-43 (0.75 kW 1:43 Ratio)
- CNHM2-6125-59 (1.5 kW 1:59 Ratio)
- CHHM3-6135-29 (2.2 kW 1:29 Ratio)
- CHHM5-6145-43 (3.7 kW 1:43 Ratio)
- CHHM5-6165-29 (3.7 kW 1:29 Ratio)
- CHHM10-6185-43 (7.5 kW 1:43 Ratio)
- CNHM1-6125DB-104 (Double Reduction)
- CVMW2-6125-59 (Vertical Flange)
- Sumitomo Cyclo 6095 Speed Reducer
- Sumitomo Cyclo 6115 Speed Reducer
- Sumitomo Cyclo 6125 Speed Reducer
- Sumitomo Cyclo 6145 Speed Reducer
- Sumitomo Cyclo 6165 Speed Reducer
- Sumitomo Cyclo 500% Shock Load Reducer
- Sumitomo Cyclo C-Face Adapter Unit
- Sumitomo Cyclo Double Reduction Drive
- Sumitomo Cyclo Conveyor Gearmotor
- Sumitomo Cyclo 3000/4000 Replacement
