Monthly Deals C Frame Double Crank Punch Stamping Power Press

• Customization: Available
• After-sales Service: Available
• Warranty: One Year
• Model NO.: JH25
• Type: General Punching Machine
• Punch Shape: Open Punch
• Slider Movement: Single Action
• Slider Drive Mechanism: Crank Press
• Controlling Mode: Artificial
• Automatic Grade: Automatic
• Power Source: Pneumatic
• Precision: High Precision
• Certification: GS, CE, RoHS, ISO 9001
• Condition: New
• Press: Mechanical Power Press
• Control System: PLC with HMI
• Clutch Type: Wet Type Pneumatic Clutch
• Lubrication System: Automatic Grease Pump
• Overload System: Hydraulic Overload Protection
• Color: Grey and Customized
• Slide Adjust: by Motor
• Die Height Display: Digital Indicator
• Slide Weight Balance: Pneumatic Cylinder
• Press Operation: Hand Button
• Signal Transmit: Cam Controller
• Automation I/O: Available
• Motor Speed Drive: Optional Inverter
• Safety Light Curtain: Optional
• Anti-Vibration Pads: Standard
• Transport Package: Steel Pallet
• Specification: press capacity from 110 tons to 315 tons
• Trademark: WORLD
• Origin: China
• HS Code: 84295212
• Production Capacity: 500PCS/Yea
• Package Size: 500.00cm * 300.00cm * 300.00cm
• Package Gross Weight: 30000.000kg

Product Description

Advantages of C-frame Double Crank Press

1. One year warranty, free parts within warranty 
2. International standards electric elments
3. CE safety certificate for EU markets, conform to NR12 standards for Brazil market
4. Installation support available 
5. Two-decades manufacturing experience in this type of press
6. Automation I/O available 

JH25 C-Frame Double-Crank Stamping Press Applications

The gap-frame double crank press is a versatile mechanical press designed to meet diverse industrial needs, particularly in high-volume sheet metal processing. Its open-front gap frame and dual-crank mechanism enable efficient material handling and precise stamping, making it ideal for a wide range of applications across industries. Here are its key application areas:
Automotive Component Manufacturing‌: The press excels in producing automotive parts such as brackets, clips, and structural components. Its high-speed operation and adjustable stroke allow for rapid production of complex shapes, while the open frame facilitates integration with robotic feeders for continuous material flow, enhancing efficiency in assembly lines.
Electronics and Appliance Production‌: In electronics manufacturing, the press is used for stamping intricate parts like connectors, heat sinks, and enclosures. The precision and stability of the dual-crank system ensure consistent quality for small-scale components, critical in industries where tolerances are tight and defects must be minimized.
Metal Fabrication for Construction and HVAC‌: The press is widely employed in fabricating metal sheets for building structures, ventilation ducts, and HVAC components. Its ability to handle large workpieces and integrate with automation systems reduces setup time, making it suitable for batch production of architectural elements.
Aerospace and Defense Applications‌: For aerospace parts such as brackets and fasteners, the press's durability and high load capacity ensure reliable performance under demanding conditions. The balanced force distribution of the dual crankshaft minimizes deflection, maintaining accuracy in critical components.

Product Description

Press Key Features

1. Open-Front Gap Frame Design‌: The press features a distinctive gap-frame structure with an open front, allowing easy access for wide workpieces or continuous strip material feeding from one side to the other. This design enhances material handling flexibility, reduces setup time, and facilitates integration with automation systems such as feeders and robotic arms, boosting productivity in high-volume production environments.
2. Double Crank Drive System‌: Equipped with a robust double-crank mechanism, the press ensures smooth and balanced motion during operation. The dual crankshafts distribute forces evenly across the frame, minimizing deflection and maintaining precise alignment between the punch and die. This results in superior part accuracy and extended tool life, even under heavy loads.
3. High Precision and Stability‌: The press is engineered with high-strength steel frames and precision-machined components. These features minimize operational deflection, ensuring consistent performance and meeting stringent industry accuracy standards. The balanced two-point design further enhances stability during high-speed stamping.
4. Adjustable Stroke Speed and Shut Height: Operators can easily fine-tune the stroke speed and die height to accommodate various stamping dies. 
5. Durable Construction and Longevity‌: Built with forged alloy crankshafts and wear-resistant drive train components, the press withstands continuous operation under demanding conditions. The  pneumatic clutch and brake system ensures reliable power transmission, quiet operation, and extended service life with minimal maintenance.
6. User-Friendly Control Interface‌: Features intuitive control panels with digital displays and programmable settings. The PLC control platform supports seamless integration with automation, reducing training time and enhancing operational safety.
7. Enhanced Safety Features‌: Safety is prioritized with protective guards, emergency stop buttons, and light curtains to prevent accidents during high-speed operation. These measures ensure compliance with industry standards, protecting operators while maintaining high productivity.

Standard Equipment 

Optional Accessories

1. PLC central control
2. Combined pneumatic clutch and brake
3. Dual-safety valve for clutch
4. HMI with touch screen (English version)
5. Hydraulic overload protection system
6. Automatic rease lubrication system
7. Over-run safety device
8. Slide and die counterweight balance cylinder
9. Slide height adjust motor
10. Die height digital indicator (0.1mm)
11. Movable electric cabinet with high quality elements
12. Mis-feeding protection input
13. Cam controller with rotary encoder
14. Automation user cams with programmable angles
15. Anti-vibration pads

1. Safety light curtain
2. Motor speed drive (frequency inverter for adjustable stroke speed)
3. Die cushion (twin-type)
4. Tonnage monitor
5. Thin-oil lubrication system
6. Die quick change device (die clamp, die lifter, die arm)
7. Servo NC feeder with uncoiler
8. Swing-arm manipulator
9. Physical safety fences/Safety door
10. Die safety block
11. 3-in-1 Compact straightener feeder
12. 3-axis transfer bars
13. Elbow-joint 6-axis robot arm
14. Foot pedal
15. Slide knock-out mechanism

Specification

Model	JH25-110	JH25-160	JH25-200	JH25-250	JH25-315
Capacity	110T	160T	200T	250T	250T
Stroke Length	180mm	200mm	250mm	280mm	280mm
Stroke Speeds	35-60spm	35-55spm	25-40spm	30-35spm	30-35spm
Max. Die Shut Height	400mm	450mm	500mm	550mm	550mm
Slide Adjustment	90mm	100mm	110mm	120mm	120mm
Bolster Size	1880x680mm	2040x760mm	2420x840mm	2700x920mm	2800x940mm
Slide Plate Size	1400x520mm	1500x580mm	1850x650mm	2100x700mm	2100x700mm
Throat Depth	350mm	390mm	430mm	470mm	480mm
Motor Power	11kW	18.5kW	22kW	30kW	37kW

Detail Photos

Pneumatic Clutch and Brake

Dual-Safety Valve

Combined pneumatic clutch and brake. All friciton discs are immersed inside the flywheel. Better lubrication. Lower temperature. Lower noise. Easier manitenance. Lower wearing of friction discs. Longer service life. No waster dust outside. Cleaner for working environment and stamping parts. Replace the oil annually for maintenance.

The ‌dual-safety solenoid valve‌ is a critical component in clutch control systems, designed to enhance operational reliability and fail-safe protection. This valve integrates a ‌double parallel flow architecture‌ (with optional cross flow configuration), ensuring uninterrupted functionality even if one valve fails.

Bull Gears and Pinion Gears

Crankshaft

The gear ring is precision-forged from high-grade steel, ensuring exceptional hardness and durability to withstand rigorous operational demands. The gear teeth undergo meticulous grinding processes to achieve superior surface finish and dimensional accuracy, significantly enhancing meshing precision while effectively reducing operational noise levels. The flange is constructed using high-quality iron casting, providing robust structural integrity and excellent load-bearing capacity for stable performance under heavy-duty conditions.

The crankshaft is hot forged from high-grade ‌42CrMo alloy steel‌, renowned for its exceptional combination of high tensile strength, fatigue resistance, and impact toughness under dynamic loads. Following forging, the shaft undergoes surface finishing processes: ‌CNC milling‌ ensures micron-level dimensional accuracy and geometric perfection, while ‌surface rolling‌ enhances the microstructure through cold working, significantly improving surface hardness, wear resistance, and fatigue life. This comprehensive treatment optimizes load distribution, minimizes stress concentrations.

Slide

Ball Screw and Con-rod

Bolster

Steel welded slide and iron-casting slide (for small size presses), 8-sided guide rails, with lengthened bronze plates, high precision.

Ball-screw for slide adjust, netrogen treament. Smooth adjustment of die height. Iron castion connection rod, with bronze bush.

Steel plate bolster, surface grinding. T-slots for die clamps, U slots for die lifters, and die position pin holes can be custom.

Overload Protection Pump

Motorized Grease Pump

Cam Controller

This pneumatic pump can pump hydraulic oil into the slide. It will stop the press if overload to protect the crankshaft and the stamping dies.

Motorized grease pump, pump the grease to lubricant points with a distributor. Lubricant frequency can be programmed on the HMI.

Cam controller with rotary encoder. Transmit the signals of PLC. Automation I/O available. Cam starts and ends angles can be adjusted.

Packing & Delivery

Package with Steel Pallet

The press lies down on a specific steel palllet. The pallet is fixed on the press with bolts and nuts. There are sling holes on the press body for crane lifting. Press is covered with water-proof cover.
 
Plywood box package is optional. JH25-110 and JH25-160 presses can be shipped by 20ft open top container. JH25-200 and JH25-250 presses can be shipped by 20ft/40ft flat rack. Bigger sizes presses must be shipped by bulk vessel. Under deck is better for safety.

Shipment assembly for easier installation.  Electrtic box is packed separately.

Delivery time: Standard press 60-90 days. Custom press 90-120 days.
Incoterms: EXW/FOB/CFR/CIF

After Sales Service

Warranty

Technical Support

One-year Warranty.
Free parts within warranty.
Online service support.
Dispacting engineer available.

Maintenance support availabe.
Repair service available.
Spare parts available.
Upgrade press and automation support available.

Company Profile

Top Rank Press Machines Manufacturer in China

We produce 80% critical parts of press machines in the factories. There are two basic manufacturing hubs in China. One is in Jiangsu Province, the other is in North of China (Shenyang City). The original plant was built in 1953, to produce conventional eccentric mechanical presses. We started to produce high perfomance pneumatic presses since 1998. The production capacity is more than 200 units presses per month.

Our products range:

- JX36 close type big table press with double crank, capacity from 400ton to 1000ton.
- JS36 close type gear press, capacity from 300ton to 2500ton.
- JS31 close type gear press, capacity from 160ton to 1600ton.
-  hydraulic shearing machine
-  hydraulic press brake and cnc press brake