J21 Fixed Bed Power Mechanical Press For Sale| 100-160 Ton | CAMT

Deliver consistent stamping results with a reliable mechanical press engineered for speed, energy efficiency, and long-term stability in demanding manufacturing environments.

The CAMT J21 Fixed Bench Punching Machine is a high-efficiency mechanical press designed for precise and reliable stamping operations. Powered by a robust crank-slider mechanism, it converts rotary motion into vertical reciprocating force, enabling fast and accurate punching, blanking, bending, and shallow drawing on both metallic and non-metallic materials.

Built for modern manufacturing demands, the J21 combines high-speed performance (up to 120 strokes per minute) with excellent energy efficiency through flywheel energy storage, reducing power consumption by approximately 40%. Its open C-frame structure provides convenient access for die changes and material handling, while the precision drive system delivers consistent accuracy of ±0.01 mm.

Ideal for high-volume production environments, the J21 is widely used in automotive components, precision electronics, new-energy battery casings, hardware fabrication, and rubber molding. With low maintenance requirements, stable operation, and a cost-effective design, it offers manufacturers a practical and productive solution for everyday stamping needs.

The CAMT J21 Mechanical Press uses a classic crank-slider mechanism to convert rotary motion into precise vertical stamping force. Here’s how the power flows through the machine in a complete cycle:

Energy Storage Stage
The main motor drives a heavy flywheel through a belt and pulley system. The flywheel continuously stores kinetic energy while spinning, acting like a mechanical battery. This stored energy is ready to be released instantly when needed, reducing the peak load on the motor and keeping power consumption stable.

Power Engagement Stage
When the operator presses the foot pedal or button, the clutch engages and transfers the flywheel’s stored energy to the crankshaft. At the same time, the brake releases, allowing the crankshaft to start rotating. This engagement is fast and precise, ensuring the slide begins its downward stroke without delay or lag.

Motion Conversion Stage
The rotating crankshaft drives a connecting rod that converts the circular motion into straight-line reciprocating movement. The connecting rod pushes the slide (which carries the upper die) vertically downward with controlled force and speed. The entire drive chain is rigidly engineered so that every stroke delivers consistent position and pressure.

Working & Return Stage
As the slide reaches the bottom of its stroke, the upper and lower dies close to perform punching, blanking, bending, or shallow forming. After the working point, the crankshaft continues rotating, the brake re-engages, and return springs assist the slide in rising smoothly back to the top dead center, ready for the next cycle.

Load Balancing Effect
Throughout the entire process, the flywheel’s large rotational inertia absorbs sudden load changes caused by different material thicknesses or cutting resistance. This keeps the slide motion steady, reduces vibration, protects the dies, and ensures the machine runs smoothly even during continuous high-speed production.

Advantage Of CAMT Mechanical Press

High-Speed Production

Achieve up to 120 strokes per minute, significantly shortening cycle times. Ideal for high-volume orders, this speed helps you meet tight delivery schedules without adding extra shifts or machines.

Energy-Saving Operation

Flywheel energy storage reduces power consumption by approximately 40% and lowers peak motor load. You get lower electricity bills and more stable factory power demand during continuous running.

Consistent Precision

Maintain stamping accuracy of ±0.01 mm over long production runs. This minimizes dimensional variation, reduces scrap rates, and ensures parts fit perfectly in downstream assembly.

Low Maintenance & High Reliability

Mechanical drive system has fewer failure points than hydraulic presses. Expect longer service intervals, lower spare-parts costs, and less unplanned downtime on the production floor.

Easy Material & Die Access

Open C-frame design allows quick manual or semi-automatic feeding and fast die changes. Operators spend less time on setup and more time producing, improving overall equipment efficiency.

Lower Total Cost of Ownership

Competitive purchase price combined with reduced energy use and maintenance expenses delivers a faster return on investment compared with hydraulic alternatives of similar capacity.

Multi-Process Versatility

One machine handles punching, blanking, bending, shallow drawing, and press-fitting. You can switch between different jobs without investing in multiple specialized presses, saving both floor space and capital.

Smooth & Stable Continuous Running

Flywheel inertia effectively balances load fluctuations, keeping the slide motion steady even under varying material thickness. This reduces vibration, protects dies, and extends the service life of both machine and tooling.

J21 Fixed Bench Mechanical Press Specifications

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

FAQs When Purchase Mechanical Press

What is the nominal force (tonnage) of this mechanical press? How do I choose the right tonnage?

The required tonnage should be calculated based on material thickness, strength, and die projection area. We will recommend the most suitable model according to your specific process parameters to avoid insufficient capacity or unnecessary over-specification.

What is the maximum strokes per minute (SPM)? Is it suitable for high-volume production?

The J21 series can reach up to 120 strokes per minute. Combined with flywheel energy storage, it is well-suited for continuous high-volume stamping and helps shorten production cycles.

What level of stamping accuracy can it achieve? Will accuracy decline over long-term use?

Standard accuracy reaches ±0.01 mm. With a high-precision crank-connecting rod structure and rigid frame, accuracy remains stable over long-term use under proper maintenance.

What are the main differences between mechanical and hydraulic presses? Why recommend the mechanical type?

Mechanical presses offer higher speed, lower energy consumption, and simpler maintenance, making them ideal for high-volume blanking and shallow forming. Hydraulic presses are better for deep drawing and variable pressure. The J21 provides clear advantages in efficiency and operating cost.

What material thickness can it process? Which materials are suitable?

It can process steel, stainless steel, aluminum, copper, and some non-metallic materials. Exact thickness capacity depends on tonnage and die design; we can provide detailed recommendations based on your materials.

Is die change convenient? How long does a typical die change take?

The open C-frame design provides ample operating space. With quick-clamping devices, skilled operators can complete die changes in a short time, improving efficiency for multi-product runs.

What safety protection measures does the machine have?

Standard operation is by foot pedal or dual-hand buttons. Optional photoelectric guards, light curtains, and emergency stop buttons are available to meet industrial safety standards and reduce operational risks.

Is daily maintenance complicated? Are maintenance costs high?

The mechanical drive structure is relatively simple. Main maintenance points are lubrication and inspection of the clutch and brake system. Compared with hydraulic presses, service intervals are longer and spare-part costs are lower.

How is the energy consumption performance? How much electricity can it save?

Flywheel energy storage reduces peak energy consumption by approximately 40%. Long-term operation can significantly lower electricity costs, especially in continuous production workshops.

Does it support automatic feeding or integration with production lines?

Yes. The open frame design allows easy connection with various automatic feeders, robots, or full production-line automation systems for semi-automatic or fully automatic operation.

Is the machine noisy or does it produce strong vibration during operation?

Flywheel inertia effectively balances load fluctuations, resulting in smooth operation and relatively low vibration. With proper anti-vibration pads, noise can be kept within acceptable levels.

What is the warranty period? How is after-sales service guaranteed?

The complete machine comes with a standard warranty (exact period as per contract). Remote technical support and on-site service response are available to ensure long-term stable operation.

What is the approximate delivery time?

Standard models are often available from stock or have a short production lead time. Custom configurations will have delivery times confirmed based on specific requirements after order placement.

Can the machine be customized according to our process requirements?

Yes. We support customization of table size, stroke, stroke rate, control system, and safety configurations to meet the specific needs of different customers.

Can we arrange a machine trial or visit existing customer sites before purchasing?

Yes. We welcome customers to conduct machine trials at our factory or arrange visits to existing customer sites using similar equipment, so you can see the actual performance firsthand.

Have more questions, or need a customized Mechanical Press solution?
Contact our team for detailed advice, technical support, or a tailored quotation. We’re ready to help you find the right configuration for your production needs.

Welcome To Contact Us！

Please fill out the form, and we will contact you as soon as possible.

Not familiar with China? Need a reliable team to handle your machinery imports? Looking for a specific sheet metal processing machine? Or searching for a long-term partner in the metal fabrication equipment industry? Tell us what you need, and we’ll make it happen.