- Product: NORMACLAMP® GBS M W4 Worm Drive Clamp
- Material: W4 – highly alloyed stainless steel (closure components coated free of Chromium VI)
- Clamping ranges: 17–19 mm to 239–252 mm (36 variants)
- Bandwidths: 18 mm, 20 mm, 25 mm, 30 mm
- Corrosion resistance: min. 240 hours in salt spray test
- Break torque: up to 45 Nm (depending on bandwidth)
- Recommended tightening torque: up to 25 Nm
- Application: Suction & pressure hoses with high Shore hardnesses as well as plastic or steel inserts
Item Description ▼
The NORMACLAMP® GBS M W4 Worm Drive Clamp is the high-performance solution for demanding fastenings of suction and pressure hoses with high Shore hardnesses and plastic or steel inserts. As a hose clamp according to DIN 3017, it offers extremely high band tension forces and impresses with its increased corrosion resistance.
The W4 version made of highly alloyed stainless steel with Chromium VI-free coated closure components positions itself between the W2 and W5 variants – with significantly improved corrosion protection compared to W2, while maintaining high mechanical performance. Installation is effortless with standard manual, pneumatic, or electric tools.
- Extremely high band tension forces – up to three times improved compared to competitor products
- Increased corrosion resistance – min. 240 hours in salt spray test
- Mechanical attachment without welding points – minimizes contact corrosion
- Hose-friendly bridge construction for secure hold without damage
- Rounded band edges – protects against injuries and material wear
- New special screw with spacer tube (W4) – captive and high-performance
- Reinforced band loops for high torques
- Easy installation with manual, pneumatic, or electric tools
- Commercial vehicle construction and special vehicle construction
- Mechanical engineering and industrial plants with increased corrosion requirements
- Fastening of suction and compressed air hoses with steel or plastic inserts
- Applications with increased moisture or salt exposure
- NORMACLAMP® GBS M W4 Worm Drive Clamp in the selected variant (clamping range & bandwidth)
Technical Data ▼
| Torques NORMACLAMP® GBS M W4 | ||||
|---|---|---|---|---|
| Bandwidth (mm) | Break Torque W4 (min.) | Recommended Tightening Torque | Material Thickness W4 (mm) | Corrosion Resistance |
| 18 | 15 Nm | 8 Nm | 0.6 | Min. 240 h (Salt Spray Test) |
| 20 | 20 Nm | 10 Nm | 0.8 | |
| 25 | 30 Nm | 20 Nm | 1.0 | |
| 30 | 45 Nm | 25 Nm | 1.0 | |
| Clamping Ranges & Bandwidths Overview | ||
|---|---|---|
| Clamping Range (mm) | Bandwidth (mm) | Designation |
| 17–19 | 18 | GBS M 17-19/18 SK |
| 19–21 | 18 | GBS M 19-21/18 SK |
| 21–23 | 18 | GBS M 21-23/18 SK |
| 23–25 | 18 | GBS M 23-25/18 SK |
| 25–27 | 18 | GBS M 25-27/18 SK |
| 27–29 | 18 | GBS M 27-29/18 SK |
| 29–31 | 18 | GBS M 29-31/18 SK |
| 31–34 | 18 | GBS M 31-34/18 SK |
| 34–37 | 18 | GBS M 34-37/18 SK |
| 37–40 | 18 | GBS M 37-40/18 SK |
| 40–43 | 18 | GBS M 40-43/18 SK |
| 43–47 | 20 | GBS M 43-47/20 SK |
| 47–51 | 20 | GBS M 47-51/20 SK |
| 51–55 | 20 | GBS M 51-55/20 SK |
| 55–59 | 20 | GBS M 55-59/20 SK |
| 59–63 | 20 | GBS M 59-63/20 SK |
| 63–68 | 20 | GBS M 63-68/20 SK |
| 68–73 | 25 | GBS M 68-73/25 SK |
| 73–79 | 25 | GBS M 73-79/25 SK |
| 79–85 | 25 | GBS M 79-85/25 SK |
| 85–91 | 25 | GBS M 85-91/25 SK |
| 91–97 | 25 | GBS M 91-97/25 SK |
| 97–104 | 25 | GBS M 97-104/25 SK |
| 104–112 | 25 | GBS M 104-112/25 SK |
| 112–121 | 25 | GBS M 112-121/25 SK |
| 121–130 | 25 | GBS M 121-130/25 SK |
| 130–140 | 30 | GBS M 130-140/30 SK |
| 140–150 | 30 | GBS M 140-150/30 SK |
| 150–162 | 30 | GBS M 150-162/30 SK |
| 162–174 | 30 | GBS M 162-174/30 SK |
| 174–187 | 30 | GBS M 174-187/30 SK |
| 187–200 | 30 | GBS M 187-200/30 SK |
| 200–213 | 30 | GBS M 200-213/30 SK |
| 213–226 | 30 | GBS M 213-226/30 SK |
| 226–239 | 30 | GBS M 226-239/30 SK |
| 239–252 | 30 | GBS M 239-252/30 SK |
Certifications from NovaNox® ▼
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