
Overview
The Kunwei Sensing HPS74 series is a six-axis force/torque sensor for measuring forces and moments in robotic systems. Its 74 mm diameter, 28.6 mm height and titanium-alloy housing support mechanical integration, while RS422 / Ethernet provides communication. Choose HPS74A, HPS74B or HPS74C to match the required measurement range; all three versions share the listed dimensions, supply-voltage range and measurement-quality specifications.
Features
- Measures force along Fx, Fy and Fz, and moments about Mx, My and Mz.
- Three versions provide different force and moment ranges without changing the listed housing dimensions.
- Circular housing with face mounting holes and a side-mounted circular electrical connector.
- High-performance titanium-alloy construction with a listed weight of 0.28 kg.
- RS422 / Ethernet communication and sampling frequency up to 30,000 Hz.
- Shared resolution of 0.03% FS, repeatability of 0.1% FS and accuracy of 0.3% FS.
Specifications
| Parameter | Unit | HPS74A | HPS74B | HPS74C |
|---|---|---|---|---|
| Range Fx, Fy | N | 30 | 80 | 150 |
| Range Fz | N | 100 | 200 | 400 |
| Range Mx, My | N·m | 2.5 | 5 | 10 |
| Range Mz | N·m | 2.5 | 5 | 10 |
| Diameter | mm | 74 | 74 | 74 |
| Height | mm | 28.6 | 28.6 | 28.6 |
| Material | — | High-performance titanium alloy | High-performance titanium alloy | High-performance titanium alloy |
| Overload level | % FS | 500 | 500 | 500 |
| Resolution | % FS | 0.03 | 0.03 | 0.03 |
| Repeatability | % FS | 0.1 | 0.1 | 0.1 |
| Accuracy | % FS | 0.3 | 0.3 | 0.3 |
| Weight | kg | 0.28 | 0.28 | 0.28 |
| Listed protection levels | — | IP64, IP65, IP68 | IP64, IP65, IP68 | IP64, IP65, IP68 |
| Working temperature | °C | −20 to 80 | −20 to 80 | −20 to 80 |
| Sampling frequency | Hz | Up to 30,000 | Up to 30,000 | Up to 30,000 |
| Supply voltage | V DC | 24–60 | 24–60 | 24–60 |
| Communication interface | — | RS422 / Ethernet | ||
FS denotes full scale. Protection levels are listed without a configuration-to-rating mapping.
Applications
- Robotic-arm force measurement: Measure contact forces and moments during arm interaction tasks, using the six measurement axes to distinguish linear loading from rotational loading.
- Humanoid, quadruped and exoskeleton load measurement: Instrument mechanical interaction points to assess forces and moments, selecting HPS74A, HPS74B or HPS74C according to the required load range.
- AGV vehicle and ARU robot load monitoring: Measure forces and moments at instrumented mechanical interfaces, with RS422 / Ethernet available for communicating measurements to the system.
Downloads
- KUNWEI HPS74 Drawing new Series — Drawing (PDF)
- KUNWEI KWR116 Drawing — Kwr 116 Drawing (PDF)
- Kunwei KWR63 Series RS485 — User Manual (PDF)
- KUNWEI 6 Axis Force Sensors Selection — Manual (PDF)
- KUNWEI KWR75 RS422 — User Manual (PDF)
FAQ
How do HPS74A, HPS74B and HPS74C differ?
Their measurement ranges differ. HPS74A provides Fx/Fy ranges of 30 N, Fz of 100 N and moment ranges of 2.5 N·m. HPS74B provides 80 N, 200 N and 5 N·m respectively; HPS74C provides 150 N, 400 N and 10 N·m. The listed dimensions, material and remaining specifications are shared.
What power supply and communication interfaces are specified?
All three versions specify a 24–60 V DC supply and RS422 / Ethernet communication.
Visual Details
Product Views

Dimensions and Construction

Application Examples



