Crane Selection for Forging Press Machinery Manufacturing
Cranes for forging machinery manufacturing are configured for four machine types: presses, press brakes, plate shears, and stamping presses. Press frames use QD Type cranes rated 20–80 t; press brake beds use QD Type cranes rated 10–30 t for long loads; shear blade frames use LD Type cranes rated 5–10 t; and stamping press bodies use QD Type cranes rated 10–30 t. Complete plant coverage ranges from 150,000 to 1,200,000 CNY (approx. $22,000–$178,000).
Press Manufacturing: Heavy Lifting for Frames and Slides
The press frame (C-frame or portal design) is the heaviest component in stamping, hydraulic, and screw presses, weighing 20–80 t. The slide assembly adds another 5–20 t. A QD Type double-girder crane rated 20–80 t is recommended. Cast or welded structural frames require stress relief in large annealing furnaces, and the crane handles furnace loading and unloading.
Press clutch and brake assemblies (pneumatic friction-lining type) weigh 1–5 t. The hydraulic overload protection system adds 500–2,000 kg. Press beds with T-slots weigh 3–10 t and must be lifted using nylon slings to protect the machined surfaces.
Press Brake Manufacturing: Multi-Point Lifting for Long Beds
Press brake beds range from 3–12 m in length and weigh 5–15 t. The deflection compensation mechanism demands installation accuracy of ≤0.02 mm/m across the full bed length. A QD Type crane rated 10–30 t is recommended. In the Kelude press brake bay, cranes use multi-point spreader beams with suspension point spacing of ≤3 m.
Synchronization cylinders and the deflection compensation mechanism (adjustable bed crowning) are the most challenging assembly tasks. The back gauge system weighs 500–2,000 kg. Kelude cranes in the press brake bay provide full-coverage lifting and transport for long beds (3–12 m) throughout the production process.
Plate Shear Manufacturing: Blade Frame and Body Assembly
Shear blade frames weigh 3–8 t, and the main body 5–15 t. An LD Type crane rated 5–10 t is recommended. Setting the clearance between the upper and lower blades (0.02–0.5 mm) requires repeated crane-assisted positioning and adjustment of the blade frame.
Installation of the shear hydraulic system and the hold-down feet (workpiece clamping) requires crane support. The rear support table weighs 200–800 kg. Adjusting the assembly clearance between the blade frame and body demands multiple lifting cycles.
Stamping Press Manufacturing: Frame and Ram Assembly
High-speed and portal stamping press frames weigh 10–30 t, with ram assemblies adding 5–15 t. A QD Type crane rated 10–30 t is recommended. Kelude cranes in the stamping press bay cover the full process from frame machining through final assembly.
High-speed press balancers (pneumatic) and feed mechanisms (roller or gripper type) weigh 200–1,000 kg. Kelude QD Type cranes in the stamping bay support rapid die changes.
press machine QD Type20-80t Frame | press brake QD Type10-30t Worktable | plate shearing machine LD Type5-10t Tool Rest |
Punch Press QD Type10-30t Machine Body | Long Worktable 3-12mmulti-point lifting | complete plant 15-120Universal |
Crane Configuration Table for Forging Press Machinery
| Equipment | Machine Model | tonnage | Core | Critical | investment |
|---|---|---|---|---|---|
| press machine | QD Type | 20-80t | Frame | Annealing Furnace Matching | 30-120Universal |
| press brake | QD Type | 10-30t | Worktable | multi-point lifting | 20-50Universal |
| plate shearing machine | LD Type | 5-10t | Tool Rest | Blade Clearance | 10-25Universal |
| Punch Press | QD Type | 10-30t | Machine Body | High-Speed Assembly | 20-50Universal |
Kelude Heavy Industry covers the forging and pressing machinery sector with QD heavy-duty solutions for press machines and stamping presses, long-bed lifting spreaders for press brakes, and LD solutions for plate shearing machines.
Heavy-Duty QD Type20-80t press machine Frame | Long Worktable 3-12mMulti-Point Adjustable Spreader Beam | Precision Tool Rest LD Type Matching Blade Clearance Commissioning |
Frequently Asked Questions (FAQ)
Q: How much does the press machine frame weigh?
A: The frame weighs 20–80 t. We recommend the QD Type for added capacity margin. Kelude provides tonnage verification.
Q: What should be considered when hoisting a press brake table?
A: For tables 3–12 m long, use multi-point lifting with suspension point spacing of ≤3 m to prevent bending. Nylon slings protect the table surface.
Q: How is the blade gap adjusted on a plate shearing machine?
A: The gap ranges from 0.02 to 0.5 mm and typically requires multiple lifting operations for fine adjustment. The LD Type handles 5–10 t.
Q: How often are stamping press dies changed?
A: Typically 2–4 times per day. The QD Type with C-Hook enables rapid die changes.
