Fingertip integration
Define the contact pad, the maximum object impact and cable motion through every finger pose. Keep the measured load axial.
MT-BLC-SUB / SERIES
Subminiature Surgical & Robotics Load Button
A compact compression interface for fingertip force feedback, miniature robot end effectors and instrument development. Begin with the mounting envelope, then match the force range and cable exit.
- Outer diameter
- Ø6 / Ø8 / Ø9.5 mm
- Installed height
- 2.8–4 mm
- Mounting
- Recess-mounted, convex loading button
- Accuracy envelope
- ±0.25–0.5% FS non-linearity
OD × height × compression capacity.
| Outer diameter (OD) | Height (H) | Series / fit | Button radius | Capacity (N / kgf / lbf) |
|---|---|---|---|---|
| Ø6 / Ø8 / Ø9.5 mm | 2.8–4 mm | MT-BLC-SUB ↗Robotics fingertips & miniature instruments | Spherical; drawing-specific | 1 N / 0.102 kgf / 0.225 lbfto 250 N / 25.493 kgf / 56.202 lbf |
1 N0.102 kgf / 0.225 lbf
2 N0.204 kgf / 0.45 lbf
5 N0.51 kgf / 1.124 lbf
10 N1.02 kgf / 2.248 lbf
20 N2.039 kgf / 4.496 lbf
50 N5.099 kgf / 11.24 lbf
100 N10.197 kgf / 22.481 lbf
250 N25.493 kgf / 56.202 lbf
Series options are not a full cross-product of every dimension and capacity. Button radius, tolerances, overload and model-specific performance are confirmed on the released drawing and quotation.
Fit force feedback into a millimetre-scale envelope.
Low-force resolution
Choose capacity from the full load cycle, including preload and accidental contact. ADC bit depth alone does not establish usable force resolution.
Cable exit clearance
Allow a separate relief channel and retain the cable jacket away from the sensor. Do not pull the fine conductors to position the button.
17-4PH structure. A bridge signal built around your range.
- Elastic element / button
- Heat-treated 17-4PH stainless steel; 42–45 HRC loading surface target, configuration dependent
- Nominal output / bridge
- 1–2 mV/V; 350 Ω / 700 Ω full bridge options
- Hysteresis / repeatability
- ±0.1% RO design target; model-specific confirmation
- Standard operating temperature
- −20°C to +80°C; compensated range specified separately
- Ingress protection
- IP65 / IP67 configurations by model; confirm cable exit and sealing
- High-temperature configurations
- +150°C / +200°C options subject to body, cable and thermal validation
The load path mattersLoad the convex button.
Load the convex button.
Give the cable room to move.
A compact sensor only measures correctly when the surrounding fixture supports it correctly.
Support the intended base surface
Machine a rigid, flat seat from the exact outline. Locate the sensor without squeezing the case or bypassing the sensing load path.
Keep contact on the central button
Align compression with the sensing axis. Keep the tool clear of the cover and outer case; a spherical top helps accommodate small alignment differences.
Relieve the fine shielded cable
Provide a dedicated exit channel and jacket retention. Specify flexing, bend space and a strain-relief spring or sleeve with the configuration.
Engineering RFQ / samplesTell us the space.
Tell us the space.
We’ll help size the sensor.
Share the maximum diameter, installed height and compression range. We’ll review the force path, propose a series and confirm the drawing and output configuration.
What happens next
- Mechanical & electrical fit review
- Configuration and calibration proposal
- Sample quotation with confirmed lead time
Prefer email? Contact sales@magatom.com. Inquiries are received by our dedicated button load cell mailbox.