FAQs about Hole Holding Clamps
Clamping force refers to the axial force generated when the tapered section expanded by the wedge contacts the edge of the mounting hole, pulling the plates together.
If a tensile load exceeding the clamping force is applied, a gap may occur. However, the holding force refers to the ability to maintain the gap between the plates within 0.1 mm.
Tensile strength refers to the maximum load that the clamp can withstand when the plate is pulled away from the base.
Please refer to the technical data of each product below for details.
| Part Number | Clamping Force (N) | Holding Force (N) | Tensile Strength at Failure (N) |
|---|---|---|---|
| QCHC0612N-3-SUS | 3 | 30 | 150 |
| QCHC0612N-6-SUS | |||
| QCHC0816N-3-SUS | 6 | 60 | 300 |
| QCHC0816N-6-SUS |
Yes.
This product can be used in applications subject to offset (moment) loads.
Please refer to the PDF below for guidelines on load calculations, gap generation, and precautions regarding product failure before determining suitability.
No.
The Mechanical Strength values do not include a safety factor.
These values represent the load levels at which failure can occur and should not be considered allowable loads.
| Part Number | Shear Strength at Failure (N) | Tensile Strength at Failure (N) |
|---|---|---|
| QCHC0612N-3-SUS | 200 | 150 |
| QCHC0612N-6-SUS | ||
| QCHC0816N-3-SUS | 400 | 300 |
| QCHC0816N-6-SUS |
To clamp, press the button while inserting the clamp into the hole, then release the button.
To unclamp, press the button again while removing the clamp.
Please refer to the table below for the typical button pressing force.
| Part Number | Button Pressing Force (N) |
|---|---|
| QCHC0612N-3-SUS | 14 |
| QCHC0612N-6-SUS | |
| QCHC0816N-3-SUS | 28 |
| QCHC0816N-6-SUS |
Durability testing is conducted under no-load conditions, focusing on repeated clamping and unclamping of the clamper.
The results of the durability tests are shown below for reference when evaluating product suitability.
| Part Number | Durability Test Cycles |
|---|---|
| QCHC-N-3 | 5,000 cycles |
| QCHC-N-6 |
No. This product is not designed to clamp a workpiece inserted between the plates.
Yes.
When mounted on a vertical surface, the moment load generated by the weight of the workpiece may cause a gap between the plates.
When used in a hanging position, a gap may occur if the weight of the workpiece exceeds the clamping force.
Please refer to the table below for details.
| Part Number | Clamping Force (N) | Shear Strength at Failure (N) | Tensile Strength at Failure (N) |
|---|---|---|---|
| QCHC0612N-3-SUS | 3 | 200 | 150 |
| QCHC0612N-6-SUS | |||
| QCHC0816N-3-SUS | 6 | 400 | 300 |
| QCHC0816N-6-SUS |
When using the product in a hanging position or on a vertical surface, be sure to implement adequate safety measures.
Yes, the product can be used with a single clamp.
However, we recommend using locating pins to prevent the plate from rotating.
