RATTMMOTOR HRV60 Mini Punch Grinder, Small Punch Machine CNC Lathe Turning Tool High Precision Needle Grinding Machine for Milling Drilling Machine (Accuracy 3μ)

Price: $148.90
(as of Oct 07, 2025 10:55:10 UTC – Details)

Product description

Features

Small punch grinder can be engaged in the diameter of 0.5-10mm, small punch grinding, suitable for grinding the diameter of 6mm grinding, in the diameter of the workpiece above, please use PAG to use.When the outer diameter of the punch is small, the pressure adjusting screw must be added on the pressure arm to adjust the pressure to prevent deformation of the punch.

High quality handle for easy operation

Simple pressing of the rollers, no need to correct the center, convenient for precision grinding.

Efficient work to reduce noise

Belt gear design, smooth shaking, reduce noise, effectively improve work efficiency.

Hard guide wheel double roller design

Double roller design can automatically grind concentric circles without any adjustment, and the rollers are hardened and quenched.

Paint treatment for corrosion and rust prevention

The whole surface is sprayed with paint, which effectively prevents corrosion and rust, and prolongs the service life.

Hardned base treatment

Hardened base treatment, more stable during processing.

Horizontal adjustment method

Considering the user’s workpiece size tolerance and the tolerance of the machine tool itself, there are three screws C/D and E for adjusting the precision.

If your work object is put on:

When point A is higher than point B, please relax the E screw first, and then lock the C/D screws to point B is higher than point A by 0.001-0.003mm.When point B is higher than point A, please relax the C/D screws first, and then lock the E screws into point B 0.001-0.003mm higher than point A to add grinding.

Parameters

Model: HRV60-3μHardness; 60-62 degreesConcentricity: 0.003-0.005mmRoller material: SKS3Roller deflection accuracy: 0.005-0.002mmRoller clamping range diameter: 0.5-10mmRoller clamping shortest length: 10mmRoller clamping accuracy: within 3μmBody accuracy: 0.002mmConcentricity: The punch grinder is installed on the grinder to grind the minus round punches, without any adjustment can automatically grind the concentricity circle; can adjust the rotation of the pressure roller left and right at ease, so that the workpiece forward or backward and then do the grinding; pressure screws on the pressure arm, you can adjust the size of the pressure, with different sizes of punches.

Processing method of punch grinding machine

First of all, the grinding stone of the grinding disk is formed into rows and grinding, and then the datum surface in front of the punch grinder and the parallel device of the grinding disk, so that the grinding process can be carried out in the center of the grinding disk.Turn the homing handle to the lower right, open the press handle, and place the punch between the rotating roller and the pressure bearing. At this time, use the press handle adjusting screw to adjust so that the pressure bearing can touch the center of the punch. Then, use the rear ejector pin and front stop to determine the front and rear length positions of the punch.The punch is slightly depressed due to the pressure of the pressure spring, and then the press roller fixing handle is pulled to the protruding part of the handle, and the punch is gently covered to securely hold the punch. (If the punch has a pull-out diameter of 10 or less and is heavily ground, the push roller handle can also be dispensed with).Rotate the handle with your left hand about 60-100 times per minute. During the rotation, the grinding stone touches the punch and gradually grinds it. (Please take care not to damage or rust the surface of the rotary roller and pressure bearing.)

Wide range of uses

The punch grinder can be widely used in multiple plane inclined holes, surface grinder, wire EDM, point spark, grinder, planer, milling machine, drilling machine and other precision machining.

【Mini Needle Grinder】Model: HRV60-3μ; Hardness; 60-62 degrees; Concentricity: 0.003-0.005mm; Roller material: SKS3; Roller deflection accuracy: 0.005-0.002mm; Roller clamping range diameter: 0.5-10mm; Roller clamping shortest length: 10mm; Roller clamping accuracy: within 3μm; Body accuracy: 0.002mm.
【Hardened roller, double roller design】Double rollers are hardened and quenched for better wear resistance; and the double roller design can automatically grind concentric circles without any adjustment.
【High-quality handle Easy operation】Simple pressing of the rollers, no need to adjust the center, can be convenient for precision grinding.
【Anti-corrosion and anti-rust】The whole surface is sprayed with paint, which effectively prevents rust and corrosion, and prolongs the service life.
【High efficiency and low noise】Belt gear design, smooth swing, can effectively reduce noise and improve work efficiency.
【Concentricity】The punch grinder is installed on the grinder to grind the minus round punches, without any adjustment can automatically grind the concentricity circle; can adjust the rotation of the pressure roller left and right at ease, so that the workpiece forward or backward and then do the grinding; pressure screws on the pressure arm, you can adjust the size of the pressure, with different sizes of punches.