We provide a fully engineered 1:1 replacement solution for the MRA-G080-103D3 wire-draw mechanism, designed to match the original mounting interface, measuring range, and mechanical behavior. This replacement unit supports a measurement travel of 0–3 m, delivering stable repeatability and consistent linear performance required for long-stroke displacement monitoring.
The mechanism is built with a lightweight yet durable polymer housing and equipped with a high-strength stainless-steel stranded measuring wire with a diameter of 0.55 mm. Each full revolution corresponds to a wire extension of approximately 230 mm, allowing smooth conversion of linear motion into rotary output. The internal spring system provides a controlled retraction force in the range of 3.3–4.4 N, ensuring reliable wire return even under dynamic operation. Maximum operating speed reaches 6 m/s with allowable wire acceleration up to 10 m/s², making it suitable for rapid-moving axes.
Designed for harsh industrial conditions, this replacement mechanism operates within a temperature range of –30 °C to +70 °C and is built for long-term mechanical endurance, typically supporting up to one million working cycles. With precise construction, stable wire guidance, and compatibility with standard rotary sensors, it serves as a seamless and dependable substitute for equipment requiring accurate and repeatable linear-displacement feedback.
Replacement solution image
Technical details
| Description | EcoLine wire draw mechanism for servo flange with 6 mm shaft, measuring range 0 m ... 3 m |
| Items supplied | Without encoder |
| Measurement range | 0 m ... 3 m |
| Reproducibility | ≤ 0.2 mm |
| Linearity | ≤ ± 2 mm |
| Hysteresis | ≤ 0.4 mm |
| Weight | 250 g |
| Wire draw mechanism Weight (measuring wire) | 1.2 g/m |
| Measuring wire material | Highly flexible stranded steel 1,4401 stainless steel V4A |
| Housing material | Plastic, Noryl |
| Housing material, wire draw mechanism | Plastic, Noryl |
| Length of wire pulled out per revolution | 230 mm |
| Actual wire draw length | 3.2 m |
| Spring return force | 3.3 N ... 4.4 N 1) |
| Measuring wire diameter | 0.55 mm |
| Wire acceleration | 10 m/s² |
| Operating speed | 6 m/s |
| Ambient operating temperature | –30 °C ... +70 °C |
| Enclosure rating mechanic | IP50 |
| Life of wire draw mechanism | Typ. 1,000,000 cycles 2) 3) |
