Pfaff-Silberblau SW-W-SGO-S Wall-Mounted Wire Rope Winch

Model SW-W-SGO-S | Capacity 250 – 5,000 kg | Wall-Mounted Manual Winch | Worm Gear Drive with Load Pressure Brake | Dual-Speed Gearbox on ≥2,000 kg Models | Steel Plate Construction with Roller Bearings | Wire Rope 4 mm – 18 mm | CE & UKCA Marked | Made in Germany

The Pfaff-Silberblau SW-W-SGO-S is the heavy-duty wall-mounted manual wire rope winch range, covering capacities from 250 kg right up to 5,000 kg — the heaviest manual winch in the Pfaff wall-mounted line. A worm gear drive with integral load pressure brake safely holds the load under operator-released conditions, with steel plate housing and drums and roller bearings throughout. Models rated 2,000 kg and above add a second (fast) gear speed for rapid rope retrieval and lifting of lighter loads, minimising operator handle effort.

Key Features

• Worm gear drive with integral load pressure brake: The worm gear's natural self-locking characteristic is supplemented by an explicit load pressure brake — safe holding of the load under operator-released conditions.
• Robust steel plate construction: Housing and rope drum manufactured from heavy steel plate — built for industrial-grade daily duty over a long service life.
• Roller bearings throughout: Smooth running of the rope and increased winch lifetime — significantly lower friction than plain-bearing designs, and reduced wear on internal components.
• Wide rope drum with two rope attachment points: Large rope capacity per layer combined with flexible rigging options — supports single-line or two-line configurations.
• Dual-speed gearbox on models rated ≥2,000 kg: Second (fast) speed for lifting smaller loads — lowest possible handle effort and rapid rope winding when operating below rated capacity. Specifically: 192104968 (2000 kg) 3 / 8 mm/rev; 192104969 / 30255009 (3000 kg) 5 / 11 mm/rev; 192104970 / 30256013 (5000 kg) 3 / 13 mm/rev; 30254002 (2000 kg) 5 / 12 mm/rev.
• Seven capacity grades: 250 / 500 / 1,000 / 1,500 / 2,000 / 3,000 / 5,000 kg — covers the full heavy-industrial wall-mounted manual lifting range.
• Rope diameter scaled to capacity: 4 mm rope on the 250 kg through to 18 mm rope on the 5,000 kg — each rope diameter sized to the rated load with appropriate safety factors.
• 1st-layer and top-layer ratings published: Clear capacity declaration at both rope-layer positions for accurate lift planning.
• Easy and quick mounting: Wall-mounted format on the same mounting envelope across the capacity range — fits the same console-style fixings as the standard Pfaff SW-W platform.

Technical Specifications

The two-figure capacity rating (e.g. 1,000 / 527 kg) shows the 1st-layer rated load and the top-layer rated load. Capacity reduces as the drum fills because the effective drum diameter increases, applying more mechanical disadvantage at the rope. Always plan lifts at the 1st-layer rating; the top-layer rating is the conservative limit for fully-wound operation. Models rated 2,000 kg and above show two lift-per-crank figures separated by a slash — the first is the slow / high-torque gear (used at rated capacity); the second is the fast / light-load gear (for rapid rope retrieval). Three SKU series cover the range — the 192-series (7 models, full 250 – 5,000 kg range), the 30-series (3 models, 2,000 – 5,000 kg only), and the 40-series (4 models, 250 – 1,500 kg only). The 192-series is the unified current specification; the 30- and 40-series are legacy complementary series. For nominally identical capacities the spec is usually identical between series, with minor differences in some pairs (notably the 250 kg variant where rope geometry differs between 192104964 and 40251003).

More About This Product

The Pfaff-Silberblau SW-W-SGO-S is the heavy-duty wall-mounted manual wire rope winch range covering capacities from 250 kg right up to 5,000 kg — the heaviest manual winch in the Pfaff wall-mounted line. The mechanism is a worm gear drive with an integral load pressure brake: the worm gear's natural self-locking characteristic is supplemented by an explicit load pressure brake that safely holds the load under operator-released conditions. Construction is robust throughout — housing and rope drums made from steel plate, roller bearings throughout for smooth rope running and long service life, and a wide drum with two rope attachment points giving flexible rigging configurations and high total rope capacity. Models rated 2,000 kg and above incorporate a second (fast) gear speed for rapid rope retrieval and lifting of loads well below rated capacity — minimising operator handle effort across mixed-load workdays.

Suitable Applications

The Pfaff-Silberblau SW-W-SGO-S is the standard high-capacity wall-mounted manual winch for industrial heavy lifting where powered winches are not specified. Typical applications include heavy plant installation and removal in workshops, machine tool positioning and re-positioning, foundry and forge equipment handling, large fabricated assembly handling, agricultural implement lifting, fixed-position structural lifting on construction sites, and any installation where 1,000 – 5,000 kg manual lifting is required at a fixed location. The lighter 250 / 500 kg models extend the platform downward where the SGO-S construction's robustness is preferred over a lighter SW-W (SG) at similar capacity. For powered lifting at these capacities, the Yale Mtrac (66 – 500 kg single-fall / 1,000 kg double-fall electric) and Yale RPE / CPE / VTEU electric ranges are the alternative specifications. For lighter manual winching, see the SW-W (SG), SW-K LB, SW-KAL, MWS, and SW-W Alpha ranges across the 80 kg – 1,500 kg span.

How to Use the Pfaff-Silberblau SW-W-SGO-S

1. Verify the mounting: Confirm the wall-fixing bolts remain fully torqued and the substrate is undamaged. For high-capacity SGO-S models, the mounting design must support the rated load plus a substantial safety factor — wall pull-out failures on heavy winches cause severe damage.
2. Identify rope-layer position: Determine whether the lift is at the 1st rope layer (full rated capacity) or the top layer (reduced capacity per the OEM data plate).
3. Inspect the rope: Visually check the full working length for kinks, broken strands, or surface damage. Remove from service if any defect is found.
4. Set the gear speed (dual-speed models only): On the 2,000 / 3,000 / 5,000 kg models, set the gear to slow / high-torque for full-capacity lifting, or fast / light-load for rapid rope retrieval or lifting at well below rated capacity.
5. Attach the load: Connect the rope end to the load via a suitable rated hook, sling, or shackle. Ensure all connections are secure and safety latches engaged. The wide drum's two rope attachment points support single-line or two-line rigging configurations.
6. Verify the rope alignment: The rope should run cleanly from the drum through any guide or sheave to the load without rubbing against the housing or wall.
7. Lift the load: Crank the handle smoothly. The worm gear delivers consistent feel across the crank revolution, and the load pressure brake holds the load whenever the operator releases the crank.
8. Two-person operation for the heaviest lifts: The 3,000 / 5,000 kg models in slow / high-torque mode benefit from two-person crank operation on extended lifts — refer to the OEM datasheet for guidance.
9. Lower the load: Crank the handle in the reverse direction at a controlled rate. The load pressure brake provides smooth descent.

Warning:
Wire rope winches are lifting devices and must not be used to lift, lower, or transport personnel. Never exceed the rated capacity for the rope-layer position in use. On dual-speed models, never apply full rated load in the fast gear — slow / high-torque mode is required for full-capacity lifting. The wall mounting must be designed for the dynamic loads imposed by a heavy manual winch under operation — generic wall fixings are not adequate for 3,000 / 5,000 kg models.

Safety Information

• Verify the wall mounting before each use — bolts torqued, wall substrate undamaged. Heavy SGO-S models require engineered mounting designs sized to the dynamic load.
• Inspect the wire rope for the full working length each shift; remove from service at first sign of broken strands, kinks, or surface damage.
• Never exceed the rated capacity stamped on the unit. Observe the rope-layer rating — top-layer capacity is significantly lower than 1st-layer.
• On dual-speed models, ensure the gear is set to slow / high-torque before applying full rated load — fast / light-load mode is for rapid positioning only.
• Never use the winch to lift, lower, or transport personnel.
• Maintain a firm grip on the crank handle throughout lifting and lowering. On the heaviest models, plan for two-person operation if cranking force is high.
• Keep at least three turns of rope on the drum at full extension — never run the rope off the drum.
• Heavy manual winches generate substantial reaction forces at the mounting — verify the wall fixings have been engineered for the rated dynamic load.
• Workplace operators must establish a Thorough Examination regime under LOLER 1998 / PUWER 1998 at intervals not exceeding 12 months. Higher-capacity winches typically warrant shorter inspection intervals on heavy-duty installations.

Inspection and Maintenance

The SW-W-SGO-S range is built for long industrial service with routine inspection of the rope, mounting, worm gear mechanism, roller bearings, load pressure brake, and (on dual-speed models) the gear selector. The worm gear is supplemented by the load pressure brake — confirm both the gear's self-locking characteristic and the brake's positive holding action during the LOLER Thorough Examination. Heavy-duty installations may warrant shorter LOLER inspection intervals than the 12-month default — duty cycle, load spectrum, and operating environment factor into the appropriate examination frequency. Roller bearings benefit from periodic light greasing per the OEM manual schedule. Replacement wire ropes are available in matched diameter (4 / 6 / 8 / 10 / 12 / 14 / 18 mm) and length, pre-terminated for each capacity. Wall mountings should be re-torqued at every inspection cycle — heavy manual winches generate substantial dynamic loads that can loosen fixings over time. WOLFF Onsite provides LOLER-certified Thorough Examination, spare parts, replacement rope sets, mounting consultancy, and full overhaul for the Pfaff-Silberblau SW-W-SGO-S range.

Optional Accessories

• Replacement wire rope assemblies: Matched diameter (4 / 6 / 8 / 10 / 12 / 14 / 18 mm) and length per the OEM datasheet.
• Wire rope pulley blocks (DSRB): Pfaff-Silberblau DSRB pulley blocks deflect the rope at 90° or 180° to reposition the working line or double the pulling capacity. Larger DSRB sizes available on request for the heaviest SGO-S models.
• Engineered mounting plates: Reinforced mounting plates and structural-grade fixings for installation on walls not designed to take the dynamic forces of a heavy manual winch.
• Spare crank handles and gear components: Available from CMCO as service items.

Downloads

• Pfaff SW-W-SGO Datasheet (EN, 2026) — full spec table for all 14 product codes, dimensions, and capacity ratings (PDF)

Frequently Asked Questions