Bernardo PWK 20 F – 20-ton pneumatic workshop press
The Bernardo PWK 20 F is a pneumatic workshop press with 20 tons of pressing force, suitable for straightening, bending, and mounting gears, bushings, and washers. Designed for small workshops and repair shops, it offers excellent value for money thanks to its rational and robust design. The work surface is height-adjustable via locking pins, while the movable cylinder with a stroke of 185 mm allows for greater versatility. Equipped with an integrated pressure gauge for immediate pressure readings, the PWK 20 F ensures precision and practicality. With compact dimensions and a weight of 98 kg, it is a solid and functional solution for those needing a reliable and versatile pneumatic press.
Key Specifications
20 tons pressing force for professional applications
Piston with 185 mm stroke and standard pneumatic adjustment
Height-adjustable work surface with locking pins
400 mm movable cylinder for broad versatility
Integrated pressure gauge for easy and immediate reading
Robust structure with optimized design for workshops and maintenance departments
Weight of 98 kg, compact yet stable
Suitable for straightening, assembly, bending, and bushing insertion
Technical table:
| Specification |
Value |
| Brand |
Bernardo |
| Model |
PWK 20 F |
| Type |
Pneumatic workshop press |
| Pressing force |
20 ton |
| Piston stroke |
185 mm |
| Work surface width |
220 mm |
| Passage (E) |
540 mm |
| Cylinder – work surface distance (F1) |
20 mm |
| Cylinder – work surface distance (F2) |
960 mm |
| Movable cylinder (M) |
400 mm |
| Overall width (A) |
750 mm |
| Overall depth (B) |
700 mm |
| Minimum height (C) |
1520 mm |
| Maximum height (D) |
1780 mm |
| Weight |
98 kg |
Package contents:
Bernardo PWK 20 F pneumatic press
Integrated pressure gauge
User and maintenance manual
Logistics
Bernardo shipping: 5–9 working days (7 days to the South). Original spare parts available with 3–5 working days shipping. Customer service available in Italian.
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 powered by compressed air at 6–8 bar: the piston automatically descends when the pedal is pressed, 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 coupling) the operation is safe and precise. For H7/p6 couplings 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. Essential to avoid exceeding the maximum force of the coupling and prevent damage to pressed components.
Are spare parts available?
Original Bernardo spare parts (gaskets, valves, pressure gauges) available with 3–5 working days shipping. Customer service available in Italian.
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.
