Pfaff-Silberblau STW-FvB Steel Jack with Fixed Claw, Short Design

Model STW-FvB | Capacity 1,500 kg | Height 600 mm | Lift 300 mm | DIN 7355 | Shortened Design for Low Headroom | Siku or Raku Crank

The Pfaff-Silberblau STW-FvB is the short-design fixed-claw steel jack, certified to DIN 7355. Engineered for applications where low headroom is required, with overall height of just 600 mm (120 mm shorter than the standard STW-F 15). Ideal for low-ceiling workshops, basement plant rooms, and under-machine maintenance access. Same robust steel mechanism as the standard STW-F. Available in 1,500 kg capacity only with Siku or Raku crank.

Technical Specifications

Height of Lift = Height A + Lift = 900 mm. The short design saves 120 mm of overall height compared with standard STW-F 15. Available in 1,500 kg only. STW-FvB Sifeku available on request.

Key Features

• Precisely machined gearbox: Optimal gear ratio ensures minimum operator effort and smooth operation.
• Hardened gearing parts: Low wear and extended service life under demanding industrial conditions.
• Load held in any position: Self-energising load brake generates axial pressure proportional to load weight, securely holding the load when the crank is released.
• Robust steel construction: Steel design with toothed rack of solid material for industrial and outdoor use.
• Load support on claw or head: No reduction of capacity when lifting on the claw, full WLL available at any rated position.
• Shortened design for low headroom: Overall height 600 mm, 120 mm shorter than STW-F 15.
• Lightest Pfaff steel jack at 11 kg: Easily portable, ideal for service vehicles.
• Single 1,500 kg capacity: Matched to typical low-clearance maintenance applications.

Suitable Applications

Specialist short-design jack for low-clearance applications. Applications: low-ceiling workshops, basement plant rooms, vehicle inspection pits, under-machine maintenance access, mobile maintenance teams, mezzanine floor work.

How to Use the Pfaff-Silberblau STW-FvB Steel Jack with Fixed Claw, Short Design

1. Confirm rated capacity: Verify the WLL stamped on the jack matches or exceeds the load weight.
2. Position on a firm surface: Place the jack on level, firm ground capable of supporting the load.
3. Position the load: Centre the load directly above the claw or head, ensuring vertical alignment. No side-loading.
4. Engage the load: Slowly raise the claw or head until stable contact with the load.
5. Lift using the crank: Apply steady, controlled rotation. The load brake holds position automatically when the crank is released.
6. Lower the load: Reverse crank direction to lower at a controlled rate.

Warning: Available in 1,500 kg only. Do not exceed this WLL. For higher capacities in low clearance, consider parallel STW-FvB units or hydraulic low-profile alternatives.

Safety Information

• Always inspect the jack before each use (base plate, rack, gear housing, crank).
• Never exceed the Working Load Limit stamped on the jack body.
• Use only the manufacturer-approved crank, never with extension bars or mechanical drives.
• Never use on soft ground, ice, or unstable surfaces.
• Never side-load, angle-load, or use the jack to lift persons.
• For sustained load support, place additional supports beside the jack before any work beneath the load.
• LOLER 1998 thorough examination required every 12 months where used as lifting equipment.
• STW-FvB is available in 1,500 kg only, do not exceed this WLL.

Inspection and Maintenance

Same routine maintenance as the standard STW-F. Inspect rack, claw, and crank before each use. Lubricate annually. WOLFF Onsite provides LOLER inspection.

Optional Accessories

• Pfaff Cranks: Replacement Siku, Raku, or Sifeku (on request).
• LOLER inspection and overhaul: WOLFF Onsite service.

Downloads

• Pfaff STW-FvB Datasheet (EN, 2024) , full spec tables and dimensional drawings (PDF)

Frequently Asked Questions