CAMT

J21 Fixed Bench Punching Machine

CAMT

J21 Fixed Bench Punching Machine

CAMT punching machine is a highly efficient industrial equipment that utilizes mechanical power to apply force through dies, performing processes such as punching, forming, bending, and drawing on metallic or non-metallic materials. Its core operating principles are categorized into mechanical (crank-slider mechanism) and hydraulic (Pascal’s principle), with the former suited for high-speed mass production (e.g., electronic component stamping) and the latter excelling in low-speed, high-precision forming (e.g., automotive sheet metal deep drawing).

A standard press consists of a frame (C-type open-back or straight-side), drive system (mechanical crankshaft/hydraulic cylinder), and intelligent control system (PLC), achieving precision up to ±0.01mm and speeds as high as 120 strokes per minute.

Renowned for its efficiency (0.1-second cycle time), energy savings (flywheel energy storage reduces consumption by 40%), and flexible production (quick die change), press machines are indispensable in modern manufacturing, widely used in automotive (door hinges), precision electronics (mobile phone frames), and new energy sectors (battery casings).

Robust & Simple Design

High Productivity

Operational Flexibility

Cost-Effective

CAMT Mechanical Punching Stamping

Crank-slider mechanism for power transmission

Motor drives the flywheel via a belt pulley, storing kinetic energy. The clutch engages to transfer motion to the crankshaft.
Crankshaft converts rotary motion into linear reciprocating motion of the connecting rod, which moves the slide (upper die) vertically.
Slide descends to close the upper and lower dies for punching, bending, or forming; it resets via a brake and return springs during ascent.
Flywheel’s inertia balances load fluctuations, ensuring smooth operation.

CAMT Components of Punching Machine

Key Mechanical Structural Configuration

C-type open-front design for high rigidity and easy die/material access.
Crankshaft, connecting rod, and slide form the main drive chain, with precision directly affecting stamping quality.
Clutch controls slide movement.
Foot pedal or push-button operation, with optional photoelectric safety guards.
Die shank clamp, knock-out mechanism (ejection), and lubrication

Stamping Application for Punching Machine

Widely used in the following industries

Name	J23-10	J23-16	J23-25	J23-40	J23-63	J23-80	J21-100	J21-125	J21-160	JH21-200	JH21-250
Nominal force KN	100	160	250	400	630	800	1000	1250	1600	2000	2500
Stroke of Nominal force mm	2	2	3	5	5	6	6	8	8	12	14
Stroke of sliding block mm	50	60	70	100	100	120	130	130	160	180	200
Number of strokes times/min	130	110	60	55	50	45	43	35	28	28	28
Closed height mm	180	190	210	325	350	370	380	400	400	420	430
Closed height adjustment mm	35	40	50	65	80	90	100	110	120	120	130
Distance from slider block centre to the frame mm	130	150	180	250	260	275	310	340	390	390	390
Length between columns mm	140	160	230	270	310	410	520	560	580	680	700
Hole size for die handle Diameter mm	35	35	40	50	50	60	60	70	80	90	100
Depth mm	50	60	60	70	70	70	90	120	150	150	170
Size of worktable Left-right mm	360	440	500	680	720	750	900	930	1140	1390	1500
Front-back mm	240	270	320	460	480	530	630	630	740	820	900
Blanking hole diameter mm	80	100	130	150	160	180	180	200	200	220	250
Table plate thickness mm	35	40	50	65	80	100	120	130	150	150	150
The maximum tilt angle •	35	35	30	30	20	20
Dimensions Left-right mm	680	730	920	1060	1130	1350	1480	1590	1855	2015	2340
Front-back mm	630	950	1180	1435	1480	1715	1815	1890	2045	2475	2675
Height mm	1658	1750	2040	2350	2450	2670	2750	2850	2920	3780	3850
Power KW	1.1	1.5	2.2	4	5.5	7.5	11	11	15	18.5	22

Advantage:

Mechanical drive ensures low failure rates and maintenance costs vs. hydraulic presses.
Fast cycling (up to 120 SPM) for mass production.
Open-frame allows manual/semi-automatic feeding (compatible with feeders).
Lower upfront cost and energy consumption (flywheel reduces peak motor load).

CAMT

J21 Fixed Bench Punching Machine

CAMT