Bernardo PWK 45 F – 45-ton Pneumatic Workshop Press
The Bernardo PWK 45 F is a professional pneumatic workshop press designed for demanding applications. With a pressing force of 45 tons and a 190 mm stroke piston, it is suitable for straightening, bending, and mounting gears and bushings. The robust steel structure ensures stability and long-term durability even with intensive use. The work table, adjustable to 5 positions via locking pins and equipped with a standard winch, allows for quick adaptation to various operational needs. The integrated pressure gauge allows for precise pressure monitoring, while the piston feed can be managed manually or pneumatically. Weighing 299 kg and with generous dimensions, the PWK 45 F offers power, safety, and reliability, representing an optimal solution for mechanical workshops and maintenance departments.
Key Specifications
45-ton pressing force for professional applications
Piston with 190 mm stroke and manual or pneumatic operation
Work table adjustable to 5 positions with standard winch
Integrated pressure gauge for easy and precise pressure control
Robust steel structure for high stability and long durability
Large 825 mm useful clearance for large workpieces
Weight of 299 kg for stability and safety during operations
Suitable for straightening, bending, mounting gears and bushings
Technical table:
| Specification |
Value |
| Brand |
Bernardo |
| Model |
PWK 45 F |
| Type |
Pneumatic Workshop Press |
| Pressing force |
45 ton |
| Piston stroke |
190 mm |
| Table width |
360 mm |
| Clearance (E) |
825 mm |
| Clearance (F) |
185 mm |
| Cylinder – table distance (F1) |
170 mm |
| Cylinder – table distance (F2) |
870 mm |
| Overall width (A) |
1110 mm |
| Overall depth (B) |
800 mm |
| Minimum height (C) |
1660 mm |
| Maximum height (D) |
1720 mm |
| Weight |
299 kg |
Package contents:
Bernardo PWK 45 F pneumatic press
Integrated pressure gauge
Winch for table adjustment
User and maintenance manual
Logistics
Bernardo shipping: 5–9 business days (7 days to the South). Original spare parts available with 3–5 business day shipping. Italian customer support available.
Frequently asked questions
What is the difference between WK (manual) and PWK (pneumatic)?
WK presses have manual hydraulic operation — the operator pumps the lever to pressurize the cylinder. PWK presses are operated by compressed air at 6–8 bar: the piston descends automatically by pressing the pedal, with constant speed and force regardless of the operator. PWK presses are more productive for repetitive serial operations; WK presses are more economical and do not require a pneumatic system.
Can the WK / PWK press press bearings and bushings?
Yes. This is the main operation they are designed for: inserting and removing bearings, bushings, plain bearings, pins, and inserts. With the correct force (calculated based on the diameter and interference of the fit), the operation is safe and precise. For H7/p6 fits on steel: force ≈ 1–3 kN per mm of diameter.
Is the pressure gauge included as standard?
Yes — all Bernardo WK and PWK presses include a pressure gauge for direct reading of the applied force in tons. Indispensable for not exceeding the maximum force of the fit and avoiding damage to the pressed components.
Are spare parts available?
Original Bernardo spare parts (seals, valves, pressure gauges) available with 3–5 business day shipping. Italian customer support available.
What foundation does it require?
WK and PWK presses do not require a special foundation — a standard industrial floor (15–20 cm concrete) is sufficient. Versions up to 50T are fixed to the floor with standard M12 bolts.
