Qc12y-4 3200 hydraulic swing beam shear

The '4x3200' designation indicates a maximum cutting thickness of 4mm (based on carbon steel with 450N/mm² strength) and a maximum cutting length of 3200mm. You must verify the motor power (typically 5.5kW - 7.5kW), the backgauge adjustment range (usually 20-600mm), and the strokes per minute (typically 10-14 times/min). Ensure the machine uses a high-quality hydraulic system (such as Bosch Rexroth or Sunny) and a reliable CNC/NC controller like E21S or DAC310 for precision.

The swing beam design (QC12Y series) uses a circular arc movement for the upper blade, which reduces friction and wear. It is generally easier to maintain and more cost-effective than guillotine shears. However, it has a fixed rake angle, meaning it is optimized for specific thickness ranges. For a 4mm machine, ensure the blade gap adjustment is easily accessible (manual or motorized) to prevent burrs and extend blade life when switching between different material gauges.

For the European market, the machine must have a CE Certification and comply with the Machinery Directive 2006/42/EC. Key safety features should include front finger guards, rear light curtains (photoelectric sensors), and an emergency stop button on the foot pedal and control panel. For North America, check for UL-listed electrical components and compliance with ANSI B11.4 standards for shear safety.

Focus on the blade material, which should be high-carbon, high-chrome steel like Cr12MoV or 6CrW2Si for durability. The hydraulic seals should be from reputable brands like NOK (Japan) to prevent oil leaks. Additionally, check if the main frame is stress-relieved via vibration or tempering after welding to ensure long-term structural stability and cutting accuracy.

Always request a factory acceptance test (FAT) video showing the machine cutting a 4mm steel plate at full length (3200mm). Better yet, hire a third-party inspection service (like SGS or TUV) to verify the machine's precision and component brands before final payment. On Made-in-China.com, prioritize Audited Suppliers who have undergone comprehensive on-site verification.

Due to its size and weight (approx. 4,000kg - 5,500kg), the machine should be shipped in a 40HC container or a Flat Rack. Ensure the supplier uses anti-rust oil on the worktable and blades, and wraps the machine in vacuum plastic packaging. Request a detailed foundation drawing at least 30 days before arrival so you can prepare the concrete floor and power supply (3-phase voltage) in advance.

Since sending technicians overseas is costly, negotiate for a 24-month warranty on core components and ensure the supplier provides English-language manuals and video troubleshooting guides. Confirm that the supplier has spare parts in stock (like seals, switches, and blades) and can ship them via international express (DHL/FedEx) within 48 hours if a breakdown occurs.

Use Secured Payment services provided by Made-in-China.com to ensure your funds are only released after the supplier provides proof of shipment. Avoid paying 100% upfront; a standard industry practice is 30% deposit and 70% balance against the Bill of Lading (B/L) or after pre-shipment inspection.