Pliers Manufacturing Process: Machines for Every Step
We supply the machines for every step of the pliers manufacturing process, from coining the forged blank to molding the handle. Forging and heat treatment of the blank are done upstream, before the first station. The line is built around 6–8 inch pliers and covers 5–12 inch with fixture and tool changes.
Hydraulic Coining Presses
Coining is the first station after forging. A hydraulic press squeezes the forged blank between dies to true its outline, emboss the lettering and level the jaws, so later stations start from a consistent part. The same press also punches and extrudes.
2500 kN force — fast, energy-saving and quiet
Drilling & Reaming Machines
Drilling and reaming open the pivot hole on each pliers half, where the two halves are later riveted together, so its position decides how well the jaws line up. A four-axis twin-station machine drills and reams in high volume with light cuts, with servo-driven spindle box feed.
Pivot hole position within ±0.05 mm
Drilling & Reaming
UB-4GZ32S CNC Four-Axis Twin-Station Drilling Machine
- Spindle Box Travel150 mm
- Spindle Speed Range200–1200 r/min
Drilling & Countersinking Machines
Countersinking cuts a chamfered seat at the pivot hole so the rivet head sits flush with the pliers surface. A three-axis CNC machine drills and countersinks in high volume with light cuts, with a servo-driven spindle box and variable-frequency spindle speed.
300 mm spindle box travel — servo rapid traverse
Drilling & Countersinking
UB-3GZ32B CNC Three-Axis Drilling Machine
- Spindle Box Travel300 mm
- Spindle Speed Range200–1200 r/min
Profile Milling Machines
Profile milling rough-mills the outline of the coined blank and sets the shape that edge milling and grinding later finish. The horizontal machine suits combination and needle-nose pliers, with hydraulic table feed and clamping, infinitely adjustable feed and a smooth change from rapid to feed.
450 mm cross slide travel — foot-operated fixture
Cutting Edge Milling Machines
Cutting edge milling forms the inner and outer cutting edges and the gripping recesses of the pliers head. Both halves are clamped in one setup, so the two edges are milled to match and the jaws close cleanly. High-speed alloy cutters leave a good surface finish.
Both halves in one setup — twin-station CNC
Cutting Edge Milling
UB-4GX-D CNC Twin-Station Compound Milling Machine
- Table Travel200 mm
- Spindle Speed2800 r/min
Stamping & Notching Presses
Stamping and notching press the markings and notches into the pliers body. A hydraulic press gives precise, repeatable pressure, so the markings come out clear and every notch has the same size from part to part. Operation is stable and simple.
200 kN rated force — 200 mm working stroke
Hot Riveting Machines
Hot riveting heats the pivot rivet and sets it to join the two pliers halves. Riveting hot preserves the carbon structure of the material and gives a more secure joint. Closed-loop current control holds the current steady as supply and load change.
Closed-loop current control — hydraulic riveting head
Double-Side Grinding Machines
Double-side grinding takes both faces of the pliers body to final thickness, so the two halves fit closely when assembled. Servo motors drive the table and both grinding heads, and one setup can grind two sets of parts to different thicknesses. It also grinds wrenches and chisels.
Body thickness within ±0.05 mm — auto wheel dressing
Double-Side Grinding
UB-3GM260B Double-Sided Grinding Machine
- Grinding Wheel DimensionsØ258×Ø182×130 mm
- Spindle Speed2000 r/min
Cutting Edge Laser Hardening Machines
Laser hardening heats only the cutting edge instead of quenching the whole tool, so the line needs no quench oil and makes no waste water. Two laser heads harden both sides of the edge at once on combination, long-nose and diagonal pliers and bolt cutters.
25% less energy than conventional heat treatment
Laser Hardening
UB-3GC-QR Three-Axis Double-Head Twin-Station Pliers Cutting-Edge Laser Hardening Machine
- Hardening Head Power3×2 kW
- Maximum X-Axis Travel700 mm
Handle Injection Molding Machines
Handle injection molding forms the insulated plastic handles, including two-color handles, as the last step of the line. A vertical machine with a rotary table loads and molds in parallel. Each mold has its own clamping cylinder, and the table upgrades from 4 to 6 or 8 stations.
160 t clamping force — up to 8 stations
Handle Injection Molding
UB-VIM-1200-P8 Vertical Injection Molding Machine
- Clamping Force160 t
- Injection Stations4 / 6 / 8 Stations
Planning a Pliers Manufacturing Process?
Tell us the pliers types, sizes and output you need, and we will recommend single stations or a full line. Programs are preset, so operators only load, unload and monitor, and new staff learn the machines in 1–2 days. The machines run at an MTBF of at least 2,000 hours.