| Model | Nominal | Nominal Stroke | Slide Stroke | Slide Strokes Per Minute | Max Die Set Height | Die Height Adjustment | Throat Depth | Distance Between Uprights | Slide Bottom Size | Shank Hole Size | Bolster Size | Blanking Hole Diameter | Bolster Tickness | Bolster Surface Height | Overall Dimensions | Distance Between Foundation Bolts | Motor | Weight | Press Pressure | ||||||||
| Fixed | Variable | LxR | FxB | Dia | Depth | LxR | FxB | FxB | LxR | H | FxB | LxR | Power | ||||||||||||||
| KN | mm | mm | times/min | times/min | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | kw | kg | Mpa | ||
| JH21-25 | H | 250 | 3 | 50 | 125 | 75-150 | 265 | 50 | 210 | 450 | 360 | 250 | 40 | 65 | 720 | 400 | 150 | 80 | 780 | 1500 | 945 | 2120 | 980 | 690 | 3 | 2450 | 0.5 |
| S | 3 | 80 | 100 | 60-120 | 250 | ||||||||||||||||||||||
| JH21-45 | H | 450 | 4 | 70 | 95 | 65-115 | 295 | 60 | 225 | 515 | 410 | 340 | 50 | 60 | 825 | 440 | 150 | 110 | 800 | 1585 | 1075 | 2390 | 1075 | 760 | 5.5 | 3550 | |
| S | 4 | 120 | 80 | 50-95 | 270 | ||||||||||||||||||||||
| JH21-60 | H | 600 | 4 | 80 | 90 | 60-110 | 330 | 70 | 270 | 560 | 480 | 400 | 50 | 70 | 930 | 520 | 150 | 130 | 900 | 1540 | 1200 | 2570 | 1100 | 840 | 5.5 | 5150 | |
| S | 4 | 140 | 70 | 45-85 | 300 | ||||||||||||||||||||||
| JH21-80 | H | 800 | 5 | 100 | 80 | 55-95 | 350 | 80 | 310 | 610 | 540 | 460 | 50 | 65 | 950 | 600 | 180 | 140 | 900 | 1765 | 1200 | 2725 | 1210 | 920 | 7.5 | 6450 | |
| S | 5 | 160 | 60 | 40-75 | 320 | ||||||||||||||||||||||
| JH21-100 | H | 1000 | 5 | 100 | 80 | 55-95 | 365 | 90 | 330 | 670 | 620 | 520 | 70 | 90 | 1060 | 640 | 180 | 145 | 900 | 2000 | 1300 | 3010 | 1365 | 1020 | 7.5 | 8650 | |
| S | 5 | 160 | 55 | 35-65 | 335 | ||||||||||||||||||||||
| JH21-125 | H | 1250 | 6 | 110 | 70 | 50-85 | 385 | 90 | 350 | 670 | 620 | 520 | 70 | 90 | 1100 | 680 | 200 | 155 | 900 | 2040 | 1320 | 3035 | 1430 | 1040 | 11 | 9550 | |
| S | 6 | 180 | 50 | 35-60 | 350 | ||||||||||||||||||||||
| JH21-160 | H | 1600 | 6 | 130 | 60 | 40-70 | 435 | 100 | 400 | 736 | 700 | 580 | 70 | 100 | 1175 | 760 | 220 | 165 | 900 | 2305 | 1420 | 3215 | 1665 | 1140 | 15 | 13600 | |
| S | 6 | 200 | 45 | 30-55 | 400 | ||||||||||||||||||||||
| JH21-200 | H | 2000 | 6 | 150 | 50 | 35-60 | 485 | 110 | 430 | 910 | 880 | 650 | 70 | 100 | 1390 | 840 | 240 | 180 | 1000 | 2600 | 1540 | 3800 | 2020 | 1360 | 18.5 | 19200 | |
| S | 6 | 220 | 45 | 30-55 | 450 | ||||||||||||||||||||||
| JH21-250 | H | 2500 | 6.5 | 120 | 45 | 30-55 | 530 | 120 | 450 | 980 | 950 | 700 | 70 | 130 | 1500 | 880 | 260 | 190 | 1000 | 2660 | 1640 | 3850 | 2100 | 1460 | 22 | 23200 | |
| S | 6.5 | 220 | 30 | 20-35 | 500 | ||||||||||||||||||||||
| JH21-315 | H | 3150 | 7 | 120 | 45 | 30-55 | 530 | 120 | 450 | 980 | 950 | 700 | 70 | 130 | 1540 | 880 | 260 | 190 | 1000 | 2720 | 1680 | 3850 | 2140 | 1500 | 30 | 26600 | |
| S | 7 | 220 | 30 | 20-35 | 500 | ||||||||||||||||||||||
| JH21-400 | H | 4000 | 8 | 180 | 40 | 30-50 | 585 | 120 | 490 | 1050 | 1020 | 750 | 70 | 130 | 1700 | 950 | 280 | 210 | 1100 | 2850 | 1750 | 4140 | 2185 | 1570 | 37 | 29500 | |
| S | 8 | 250 | 30 | 20-35 | 550 | ||||||||||||||||||||||
Our air powered pneumatic punching machines are versatile tools for a multitude of precision metal forming tasks across various sectors.
Automotive Manufacturing
Precision forming of body panels, brackets, and chassis components.
Electronics Industry
Punching precise holes in enclosures, heat sinks, and communication device components.
Sheet Metal Fabrication
General hole punching, blanking, and forming for various metal parts.
Home Appliance Production
Manufacturing of shells, panels, and internal structural parts.
The LISTEN Pneumatic Punching Machine (also known as a Pneumatic Punch Press) utilizes high-pressure compressed air to deliver precise, high-speed metal forming. Engineered with a heavy-duty, stress-relieved frame and an advanced Dry Clutch system, our pneumatic punch machines redefine efficiency in blanking, piercing, and imprinting tasks.
Compared to mechanical presses, the air-powered system provides smoother operation, lower noise, and significantly reduced maintenance costs, making it a premier sheet metal machine solution for the modern factory.
Advanced Dry Clutch Technology:
Unlike wet clutches, our dry clutch ensures faster engagement and disengagement, providing instant response for high-frequency stamping. This is critical for maintaining synchronization in automatic pneumatic punching and riveting machine setups.
Unmatched Safety & Control:
Safety is our priority. Every air operated punch press machine integrates a PLC-based control system with dual-hand operation buttons and optional MSD Laser Safety Systems or light curtains to ensure a near-zero accident rate.
High-Precision Ram & Worktable:
The ram is crafted from hardened alloy steel, moving on precision guides to maintain accuracy even under full load. Combined with a heavy-duty T-slot worktable, it ensures perfect alignment with your press brake tooling and dies.
Energy Efficiency:
By utilizing compressed air and optimized servo-driven pumps, these machines reduce energy consumption by up to $30\%$ compared to older hydraulic models.
The dry clutch uses friction plates for direct power transmission. It ensures quick engagement/disengagement, precise control, and low maintenance. Heat-resistant materials enhance durability. Compact, energy-efficient, and suitable for high-speed stamping, it supports CE/ISO-compliant safety in automotive and sheet metal industries.
The system integrates PLC-based control, sensors, and relays for precise air valve and cylinder operation. Safety features include emergency stops, two-hand controls, and overload protection. Energy-efficient motors, user-friendly HMI interfaces, and CE/ISO compliance ensure reliability, accuracy, and operator safety in metal stamping tasks.
Centered on PLC-based control and HMI interfaces, it enables precise adjustment of stroke, pressure, and speed. Features include two-hand operation, emergency stops, and programmable presets. Adjustable parameters ensure material versatility. CE/ISO-compliant, prioritizing safety, efficiency, and streamlined workflows in metal stamping.
The ram, driven by pneumatic cylinders, delivers precise vertical motion for stamping. Crafted from alloy steel with precision-guided design, it ensures durability and accuracy. Features include adjustable stroke settings, overload protection, and CE/ISO compliance. Ideal for punching, forming, and blanking in automotive and sheet metal industries. Low-maintenance, high-efficiency.
Safety light curtains detect obstructions to halt operations instantly. Two-hand control buttons prevent accidental activation. Emergency stop switches cut power immediately. Fixed/interlocked guards shield moving parts, while overload protection prevents mechanical failure. CE/ISO-compliant designs prioritize operator safety, reducing injury risks in metal stamping tasks.
The worktable, crafted from heavy-duty steel, features T-slots for secure material clamping and tooling alignment. Equipped with shock absorbers and adjustable height settings, it minimizes vibration and ensures precision. CE/ISO-compliant, its durable, flat surface supports high-accuracy stamping in automotive and sheet metal industries.
Pneumatic systems offer better control over the stroke speed and pressure. They are significantly quieter, produce less vibration, and have fewer wearing parts, which leads to a longer lifespan and lower long-term maintenance costs.
Absolutely. As an experienced China OEM supplier, LISTEN designs machines with PLC and HMI interfaces that easily sync with robotic loaders, decoilers, and automatic feeding systems.
The required tonnage depends on the material type, thickness, and the total perimeter of the punch. We recommend consulting our Manual vs. CNC ROI Guide or contacting our engineering team for a free calculation based on your blueprints.
Thank you for your interest in learning more about LISTEN. We value your comments and inquiries. For product-related information,please refer to our product page. For general questions, concerns, or website feedback, please complete the following form and we will get back to you.