Why Source from ZHR?
- ISO 9001:2015 certified manufacturing facility with CNAS-accredited testing lab (L1234) since 2015.
- 2-4 week lead time on samples and small-batch orders —2-3x faster than Western competitors with 1-unit MOQ.
- Full in-house production: 2,000m² facility with CNC machining, precision gear grinding, cleanroom assembly, and automated PCB/SMT lines.
- 6-stage factory testing on every unit —individual test reports with serial-number traceability shipped with every actuator.
- 500+ deployments globally across 15+ countries —humanoid robots, cobots, exoskeletons, surgical systems.
When sourcing precision reducers for your robotics program, the manufacturer you choose directly impacts your development timeline, bill of materials cost, and ultimately, your robot's performance. A precision robot reducer manufacturer that combines in-house design, machining, assembly, and testing under one roof eliminates the supply chain fragmentation that delays projects and inflates costs.
This profile covers ZHR Motor's full manufacturing capabilities, product lines, quality systems, custom engineering services, and global logistics —everything a procurement engineer needs to evaluate a precision reducer partner.
1. Precision Robot Reducer Manufacturing Since 2015
Shenzhen Zhenghe Intelligent Control Co., Ltd. (brand: ZHR Motor) is a specialized manufacturer of precision robot reducers and integrated joint actuators. Founded in 2015 and headquartered in Shenzhen's Longgang District, the company designs, manufactures, and tests harmonic drive strain wave gear reducers and planetary gearbox actuators for the global robotics industry.
Our 2,000m² facility combines in-house CNC machining, precision gear grinding, cleanroom assembly, and automated PCB/SMT production lines —enabling full vertical integration from raw materials to finished, tested actuators. Unlike general industrial gearbox manufacturers, ZHR focuses exclusively on robot-specific precision reducers —actuators engineered for the unique demands of humanoid robots, collaborative robots, surgical robotics, and exoskeletons.
Every product integrates frameless motors, dual absolute encoders, FOC drivers, and communication interfaces into a single compact module —ready for immediate integration into your robot joint.
2. In-House Manufacturing Capabilities
ZHR's vertically integrated manufacturing eliminates dependence on third-party suppliers and ensures quality consistency from prototype to volume production.
- ✓ 5-axis CNC machining centers
- ✓ Gear grinding (JIS Class 4)
- ✓ Sub-5 μm positional accuracy
- ✓ Turn-mill compound centers
- ✓ ISO Class 7 (Class 10,000)
- ✓ Temperature: 22±1°C
- ✓ Humidity: 45±5% RH
- ✓ ESD-controlled workstations
- ✓ CNAS-accredited lab (L1234)
- ✓ 6-stage factory testing
- ✓ Serial-number traceability
- ✓ 24h burn-in per unit
3. Quality Certifications & Testing
Every ZHR actuator undergoes a rigorous 6-stage factory acceptance test with documented results. The test report —traceable by individual serial number —ships with every unit.
| Certification | Standard / Scope | Status |
|---|---|---|
| ISO 9001:2015 | Quality Management System —full product lifecycle | Active |
| CE Marking | Machinery Directive 2006/42/EC, EMC 2014/30/EU | Active |
| RoHS | Directive 2011/65/EU —Hazardous Substances | Compliant |
| REACH | Regulation (EC) No 1907/2006 —chemical substances | Compliant |
Full certification documentation available at robotics.zhinno.com/certifications.html.
4. Precision Reducer Product Lines
ZHR-H Series —Harmonic Drive Strain Wave Gear Reducers
Zero-backlash harmonic reducer joint motors for applications requiring <20 arcsec positioning accuracy. Ideal for collaborative robots, surgical robotics, and humanoid robot upper bodies. All models feature 18-bit multi-turn absolute encoder, FOC drive, CAN/RS485 communication, IP54 rating, and integrated brake.
| Model | Diameter | Weight | Rated Torque | Peak Torque | Torque Density | Backlash |
|---|---|---|---|---|---|---|
| ZHR-H14 | 70 mm | 0.7 kg | 5-14 Nm | 15-46 Nm | 36.5 Nm/kg | <20 arcsec |
| ZHR-H17 | 80 mm | 1.3 kg | 13-43 Nm | 40-122 Nm | 33.1 Nm/kg | <20 arcsec |
| ZHR-H20 | 90 mm | 1.7 kg | 20-64 Nm | 50-170 Nm | 37.6 Nm/kg | <20 arcsec |
| ZHR-H25 | 110 mm | 2.3 kg | 27-91 Nm | 63-210 Nm | 39.6 Nm/kg | <20 arcsec |
ZHR-P Series —Planetary Gearbox Reducer Actuators
High-torque planetary gear reducer joint motors with 96%+ efficiency and 300% overload capacity. Optimized for humanoid robot legs, quadruped robots, and exoskeletons where shock tolerance and energy efficiency are paramount.
| Model | Diameter | Weight | Rated Torque | Peak Torque | Ratio | Protocol |
|---|---|---|---|---|---|---|
| ZHR-P14 | 57 mm | 0.31 kg | 5 Nm | 14 Nm | 10:1 | EtherCAT/CANopen |
| ZHR-P36 | 88 mm | 0.62 kg | 11 Nm | 36 Nm | 9:1 | EtherCAT/CANopen |
| ZHR-P60 | 98 mm | 0.90 kg | 20 Nm | 60 Nm | 9:1 | EtherCAT/CANopen |
| ZHR-P120 | 120 mm | 1.42 kg | 40 Nm | 120 Nm | 9:1 | EtherCAT/CANopen |
5. Custom Engineering Services
For projects requiring non-standard specifications, ZHR provides full custom engineering from concept through production. Typical custom project timeline: 2-4 weeks for design & validation plus 4-8 weeks for production.
Custom reduction ratios, modified output flanges (ISO 9409-1 compatible), special housing geometries, hollow shaft configurations, custom IP rating (up to IP67), integrated brake options.
Custom winding configurations, communication protocol adaptation, application-specific FOC tuning, custom CANopen object dictionary, EtherCAT ESI file generation.
FEA analysis and thermal simulation reports provided with all custom engineering prototypes.
6. Lead Times & Order Quantities
ZHR offers flexible order quantities designed to support both early-stage prototyping and full-scale production. No minimum order quantity for R&D and evaluation purchases.
MOQ: 1 unit
Lead time: 2-4 weeks
Fully tested with individual test reports
MOQ: 1 unit
Lead time: 3-5 weeks
Custom configurations available
MOQ: 10 units
Lead time: 4-8 weeks
Dedicated production line allocation
7. Global Shipping & Logistics
| Destination | Express (DHL/FedEx/UPS) | Air Freight | Ocean Freight |
|---|---|---|---|
| Asia-Pacific | 3-5 business days | 5-8 days | 7-14 days |
| North America | 5-7 business days | 7-10 days | 25-35 days |
| Europe | 5-7 business days | 7-12 days | 30-40 days |
| Middle East & Africa | 6-8 business days | 10-14 days | 35-45 days |
All shipments include customs documentation, certificates of origin, and individual test reports. Incoterms: FOB Shenzhen (standard), CIF/DDP available on request.
8. How ZHR Compares to Other Reducer Manufacturers
| Parameter | ZHR Motor | Harmonic Drive LLC | Maxon / Others |
|---|---|---|---|
| Product Type | Integrated joint module | Bare reducer + motor | Motor only / bare reducer |
| Backlash (Harmonic) | <20 arcsec | <1 arcmin | 3-5 arcmin (planetary) |
| Torque Density | 30-39 Nm/kg | 25-35 Nm/kg | 20-30 Nm/kg |
| Lead Time (Samples) | 2-4 weeks | 8-12 weeks | 6-10 weeks |
| MOQ | 1 unit | 10-50 units (distributor) | Varies by distributor |
| Custom Engineering | Full: mechanical + electrical + firmware | Limited: high MOQ, long lead | Limited to winding options |
Frequently Asked Questions
What makes ZHR a qualified precision robot reducer manufacturer?
ZHR Motor is an ISO 9001:2015 certified manufacturer with in-house CNC machining, gear grinding, cleanroom assembly, and CNAS-accredited testing laboratory. Every actuator undergoes 6-stage factory testing with individual serial-number traceability. Harmonic reducer joint motors achieve <20 arcsec backlash and 30-39 Nm/kg torque density —verified by 500+ global deployments across 15+ countries.
What types of precision robot reducers does ZHR manufacture?
ZHR manufactures two product lines: ZHR-H Series harmonic drive strain wave gear joint motors (zero backlash, 30:1-100:1 ratios, 5-91 Nm rated torque) and ZHR-P Series planetary gear joint motors (96%+ efficiency, 300% overload, EtherCAT/CANopen/CAN FD). Both integrate frameless motors, dual absolute encoders, and FOC drivers in a single compact module.
What is the MOQ and lead time for ZHR precision reducers?
Standard lead time is 2-4 weeks for sample and small-batch orders (1-50 units). Volume production (50-500+ units) is 4-8 weeks. MOQ is 1 unit for evaluation. Flexible quantities with no minimum for R&D purchases. Custom engineering adds 2-4 weeks for design and validation.
Does ZHR provide custom engineering services?
Yes. Custom services include: custom reduction ratios, modified output flanges (ISO 9409-1), custom winding configurations, communication protocol adaptation, IP rating upgrades (up to IP67), and application-specific firmware tuning. FEA analysis and thermal simulation reports provided with prototypes.
What quality certifications does ZHR hold?
ZHR holds ISO 9001:2015, CE marking (Machinery Directive 2006/42/EC), and RoHS/REACH compliance. The CNAS-accredited testing lab performs 6-stage factory acceptance tests including backlash measurement, torque/efficiency calibration, 120-minute thermal run-in, encoder verification, noise/vibration analysis, and 24-hour burn-in.
Where does ZHR ship precision robot reducers?
ZHR ships globally from Shenzhen, China via DHL, FedEx, UPS, and ocean freight. Transit times: 3-5 business days (Asia-Pacific), 5-7 business days (North America/Europe). All shipments include full customs documentation, certificates of origin, and test reports. Serving customers in 15+ countries.