High Rigidity Frame Precision Punch Press 260 Ton JIS Class 1 For Metal Stamping

The QIAOSEN ST-260V is a 260-ton high-rigidity C-type single crank precision punch press, engineered for high-speed, precision stamping of medium-thickness metal products. It meets JIS Class 1 accuracy standards, delivering exceptional precision, robust rigidity, stable operation, and user-friendly functionality—making it a core equipment for mass production in medium-to-large factories and stamping workshops.

Automotive components, hardware, electrical appliances, sheet metal fabrication, and locomotive parts. Ideal for blanking, punching, bending, forming, and shallow drawing processes of various metal materials.

• High rigidity frame minimizes deflection, ensuring long-term precision stability
• JIS Class 1 precision with ±0.01mm repetitive positioning accuracy
• Strong 260-ton punching force for medium-thickness materials
• Durable construction with extended service life
• Easy operation and maintenance
• Seamless integration with automated production lines

• Frame: High-strength steel plate welded construction, stress-relieved via high-temperature annealing. Offers minimal deformation, stable punching performance, and excellent load-bearing capacity.
• Crankshaft: Forged from 42CrMo high-strength alloy steel (1.3x stronger than conventional 45 steel). Exceptional wear resistance, fatigue resistance, and durability under continuous high-load operations.
• Slide Guide: Six-sided slide guiding system with high-frequency quenching and precision grinding. Low wear, high precision retention, and extended mold life.
• Worktable: Thickened, high-flatness work surface (1100×700mm). Ensures stable mold installation and uniform force distribution.
• Bushings: High-grade tin-phosphorus bronze ZQSn10-1 bushings. Superior wear resistance, low friction, and reduced heat generation compared to standard brass bushings.

• Powerful 260-ton Force: Capably processes medium-thickness steel, stainless steel, and aluminum plates for various stamping applications.
• Exceptional Precision Stability: Equipped with dual symmetric balancers to reduce vibration, achieving ±0.01mm repetitive positioning accuracy and minimizing defective products.
• Adjustable Stroke Rate: 20~40 strokes per minute with optimized slow punching and fast return motion, balancing efficiency and precision.
• Intuitive Operation: Touchscreen HMI with centralized controls. Quick learning curve for new operators, with 0.1mm precision die adjustment.
• Comprehensive Protection: High-sensitivity hydraulic overload protection safeguards machine and molds. Dry clutch-brake system delivers precise start-stop control with extended service life.

• JIS1 Precision: High-strength fuselage structure with minimal deformation and JIS Class 1 precision standards
• Easy Operation & Maintenance: C-type open design on three sides for easy mold installation and maintenance with OMPI pneumatic dry clutch
• Energy Efficient: Improves material use rate to 105%-108% and saves 25%-35% energy (approximately 4004 kWh annually per machine)
• Operation Modes: Manual, semi-automatic, and fully automatic modes available with mold information transfer capability
• Safety Features: Photo-electric safety device, oil pressure overload protection, and emergency stop buttons
• Stable Performance: High-frequency quenching and rail grinding process for minimal wear, high precision, and extended mold life

Dongguan Qiaosen Machinery Co., Ltd, established in 2016, operates its own factory in Jiangsu province near Shanghai with convenient transportation access. The company holds ISO9001:2008 quality management system certification and specializes in hydraulic press machine production.

Product range includes 10-ton to 2000-ton press machines across 8 series with over 100 types, including single column, four column, C-frame, H-frame presses, punching machines, folding machines, and cutting machines. Applications span aviation, aerospace, automotive, shipbuilding, light appliances, and daily hardware.

Products are recognized for excellent design, competitive pricing, superior quality, and efficient after-sales service, serving domestic markets across 20+ provinces and international markets including United States, Japan, Russia, European Union, Southeast Asia, and Middle East.