NN17-Rubber Pressing Block for CNC Corner Nailing Machine L-Shape 53mm

Rubber Pressing Block for CNC Corner Nailing Machine L-Shape – Scratch-Free Frame Clamping

The Rubber Pressing Block for CNC Corner Nailing Machine L-Shape is a precision-cut polyurethane block that forms the critical contact interface between the machine’s clamping arm and the picture frame moulding during the high-pressure nailing cycle.

Dimensions

The L-shaped block measures 53mm x 53mm across the outer dimensions, with a 58mm diagonal leg and approximately 7mm arm width. These dimensions are matched to the CNC corner nailing machine’s clamping arm geometry for a precise, rattle-free fit.

Material Benefits

Red polyurethane is harder than natural rubber, giving the Rubber Pressing Block for CNC Corner Nailing Machine L-Shape better dimensional stability under repeated clamping loads. However, it remains soft enough to conform slightly to the moulding profile, distributing clamping pressure evenly and eliminating point-load damage to the frame surface.

Application

This block is designed for CNC corner nailing machines (?????). It is not compatible with tabletop or 7/8-cylinder machine clamping arms, which use a different-sized block.

Replacement Schedule

Inspect the contact face of the pressing block monthly. Replace when you observe surface cracking, material hardening, or compression set that creates an uneven contact surface.

See also the Tabletop Pressing Block and Press Head Rubber Band.