Kunwei KWR75S Single-Axis Load Cell, 100–800 N Options, 75 mm for Collaborative Robots
Kunwei KWR75S Single-Axis Load Cell, 100–800 N Options, 75 mm for Collaborative Robots
Kunwei Sensing
পিকআপের উপলভ্যতা লোড করা যায়নি
Overview
The Kunwei KWR75S series is a single-axis load cell for Fz force measurement in collaborative-robot applications. Its built-in data acquisition system provides a digital signal, while the 75 mm diameter and 33.5 mm height help with mechanical integration. Five versions offer capacities of 100, 200, 300, 400 or 800 N, allowing selection of the measurement range for the intended axial load.
Features
- Single-axis force measurement along Fz, with the positive measurement direction designated Z+ for KWR75S-100, KWR75S-200 and KWR75S-300.
- Built-in data acquisition system with digital signal output.
- 1000 Hz sampling frequency, 0.05% FS resolution and 0.1% FS precision.
- Anodized aluminum-alloy construction with IP65 protection.
- 300% FS overload rating.
Specifications
FS denotes full scale. Capacity values below apply to the named version.
| Parameter | Unit | KWR75S-100 | KWR75S-200 | KWR75S-300 | KWR75SP | KWR75S-800 |
|---|---|---|---|---|---|---|
| Capacity (Fz) | N | 100 | 200 | 300 | 400 | 800 |
| Diameter | mm | 75 | 75 | 75 | 75 | 75 |
| Height | mm | 33.5 | 33.5 | 33.5 | 33.5 | 33.5 |
| Material | — | Aluminum alloy | Aluminum alloy | Aluminum alloy | Aluminum alloy | Aluminum alloy |
| Surface treatment | — | Anodization | Anodization | Anodization | Anodization | Anodization |
| Overload rating | % FS | 300 | 300 | 300 | 300 | 300 |
| Resolution | % FS | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 |
| Precision | % FS | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Weight | kg | 0.26 | 0.26 | 0.26 | 0.26 | 0.26 |
| Protection level | — | IP65 | IP65 | IP65 | IP65 | IP65 |
| Working temperature | °C | 0–80 | 0–80 | 0–80 | 0–80 | 0–80 |
| Sampling frequency | Hz | 1000 | 1000 | 1000 | 1000 | 1000 |
| Supply voltage | V DC | 9–24 | 9–24 | 9–24 | 9–24 | 9–24 |
| Listed communication protocols/interfaces | — | RS422 / RS485 / Modbus / TCP / UDP / EtherCAT / USB / etc. | RS422 / RS485 / Modbus / TCP / UDP / EtherCAT / USB / etc. | RS422 / RS485 / Modbus / TCP / UDP / EtherCAT / USB / etc. | RS422 / RS485 / Modbus / TCP / UDP / EtherCAT / USB / etc. | RS422 / RS485 / Modbus / TCP / UDP / EtherCAT / USB / etc. |
Digital Communication
The series has digital output. Listed communication choices include RS422, RS485, Modbus, TCP, UDP, Industrial Ethernet, EtherCAT and USB. CAN is additionally listed for KWR75S-100, KWR75S-200 and KWR75S-300. Confirm the required communication implementation when selecting the sensor; these listings do not establish that every interface is present simultaneously.
Mechanical Integration: KWR75S-100, KWR75S-200 and KWR75S-300
The following tool-side, mounting-side and adapter-flange details apply to KWR75S-100, KWR75S-200 and KWR75S-300. Linear values are retained in drawing notation; a linear-dimension unit is not specified for these details. Angular units are stated explicitly.
| Area | Parameter | Dimension or designation |
|---|---|---|
| Body | Outside diameter | Ø75 |
| Tool side | Threaded holes | 4 × M6, depth 6 |
| Tool side | Circle diameter | Ø50 |
| Tool side | Angular positions | 45° on each side of the upper centerline |
| Tool side | Vertical offsets | 25 above and 25 below the horizontal centerline |
| Tool side | Pin holes | 2 × Ø6, tolerance +0.02/0, depth 6 |
| Mounting side | Circle diameter | Ø64 ±0.05 |
| Mounting side | Holes | 2 × Ø5, tolerance +0.02/0, depth 6 |
| Mounting side | Angular position | 70° ±0.03° |
| Mounting side | Angular position | 110° ±0.03° |
| Section A-A | Screw designation | M4 hexagon socket countersunk screw |
| Section A-A | Depth dimension | 6 |
| Adapter-flange profile | Raised-feature diameter | Ø31.5, tolerance +0.04/0 |
| Adapter-flange profile | Raised-feature height | 6.5 |
| Adapter-flange profile | Body height | 25.5 |
| Adapter-flange profile | Overall height | 33.5 |
| Measurement axis | Positive direction | Z+ |
The adapter flange is designed for collaborative-robot mounting.
Applications
- Collaborative-robot axial contact-force monitoring: measure force along Fz during contact tasks, using the selected 100, 200, 300, 400 or 800 N capacity to suit the intended load.
- Robot-tool force data acquisition: use the built-in acquisition system and 1000 Hz digital sampling to collect axial force data for integration into a robot application.
Downloads
- KUNWEI KWR75S Drawing Series — Drawing (PDF)
- Kunwei KWR63 Series RS485 — User Manual (PDF)
- KUNWEI 6 Axis Force Sensors Selection — Manual (PDF)
FAQ
Which capacity corresponds to each version?
KWR75S-100 is rated at 100 N, KWR75S-200 at 200 N, KWR75S-300 at 300 N, KWR75SP at 400 N and KWR75S-800 at 800 N. These capacities apply to Fz measurement.
Does this sensor measure six-axis force and torque?
No. The KWR75S is a single-axis load cell for Fz force measurement.
What power supply and sampling frequency does it use?
All five listed versions specify a 9–24 V DC supply and a 1000 Hz sampling frequency.
Visual Details
Specifications and Performance
Dimensions and Construction
Application Examples
