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Pipe Bending Machine Guide: 8 Models from 3/8 to 4 Inch with One-Piece Welded Steel Construction
Complete Pipe Bending Machine Range — 8 Models from 3/8" to 4"
SUNTECHMACH offers a comprehensive lineup covering thin-wall electrical conduit to heavy Schedule 80 steel pipe. All models feature one-piece welded steel construction with integrated wheels and foldable stand for job-site portability.
| Model | Type | Capacity | Pressure | Dies Included | Wall Thk | Weight |
|---|---|---|---|---|---|---|
| STB25 | Manual | 3/8" to 1" | Manual | 7 pcs (3/8" to 1") | 0.8-2.0 mm | 27 kg |
| STB50 | Manual Hydraulic | 1/2" to 2" | 13T / 250mm | 6 pcs (1/2" to 2") | 2.75-4.5 mm | 53 kg |
| STB80 | Manual Hydraulic | 1/2" to 3" | 20T / 290mm | 8 pcs (1/2" to 3") | 2.75-5.0 mm | 103 kg |
| STB100 | Manual Hydraulic | 1/2" to 4" | 23T / 370mm | 9 pcs (1/2" to 4") | 2.75-6.0 mm | 155 kg |
| STB50E | Electric Hydraulic | 1/2" to 2" | 13T / 250mm | 6 pcs (1/2" to 2") | 2.75-4.5 mm | 70 kg |
| STB80E | Electric Hydraulic | 1/2" to 3" | 20T / 290mm | 8 pcs (1/2" to 3") | 2.75-5.0 mm | 130 kg |
| STB100E | Electric Hydraulic | 1/2" to 4" | 23T / 370mm | 9 pcs (1/2" to 4") | 2.75-6.0 mm | 180 kg |
| STSJ30 | Manual Thin Wall | 20/25/32 mm | Manual | 3 formers | Thin wall | 28 kg |
All: One-piece welded frame • Wheels and foldable stand • Anti-corrosion finish • CE certified • 1-year warranty • Electric models: 750W, 110V/220V • Compliant with GB/T 3091, DIN 2440, EN 10255, BS1387
Five Buyer Personas and Recommended Models
| Buyer Persona | Application | Recommended |
|---|---|---|
| Electrical Contractor | EMT and rigid conduit, 90-degree precision, quick job-site setup | STSJ30 / STB25 |
| Plumbing and HVAC | Galvanized and black iron pipe up to Schedule 80, gas and water lines | STB50/50E or STB80/80E |
| Industrial Pipe Fitter | Heavy steam and process piping, boiler making, up to 4" Schedule 80 | STB100 / STB100E |
| Building Distributor | Full portfolio for wholesale, CE/DIN/EN/BS compliance for global markets | Complete 8-Model Range |
| Sanitary and Heating | Cold bending per GB/T 3091, non-heated pipes, heating installation | STB50 / STB50E |
Purchase Pain Points and Our Solutions
Flimsy Frame That Cracks Under Load — Budget benders use bolted frames that loosen and crack at high tonnage. Our one-piece welded carbon steel frame eliminates weak points across all 8 models. Rated for 23-ton continuous pressure on STB100 without deformation.
Buying the Wrong Capacity — Contractors under-buy and find their bender cannot handle larger pipes. Our 3-tier progression: STB25/STSJ30 for conduit, STB50/80 for plumbing and HVAC, STB100 for heavy industrial. Choose your maximum pipe diameter plus one tier up.
Transport and Setup Wastes Labour — A 180 kg machine without mobility needs two workers and a forklift. Our solution: integrated wheels and foldable stand on all models — roll across the site, fold flat, load by one person. Setup in under 60 seconds.
Incomplete Die Sets — Some suppliers ship only 3-4 dies, forcing separate purchases. Full die sets included: STB25 (7 pcs), STB50 (6 pcs), STB80 (8 pcs), STB100 (9 pcs). Every standard pipe size covered out of the box.
Usage Pain Points We Eliminated
- Pipe kinking and oval deformation — precision-machined dies with polished grooves prevent wall collapse on Schedule 40/80 pipe.
- Inconsistent bend angles — controlled stroke limiters (250/290/370 mm) for repeatable 90-degree bends.
- Operator back strain — foldable stand elevates to ergonomic height, reducing fatigue on multi-bend jobs.
- Rust and corrosion — electroplated anti-corrosion finish on steel; alloy dies resist rust naturally.
- Motor burnout (electric) — 750W copper-wound motors with thermal overload protection.
Why SUNTECHMACH Pipe Benders Outperform
- One-piece welded frame on every model — no bolts, rated for thousands of cycles at max tonnage.
- Full die sets included (6-9 pieces) — covers every standard pipe size in the capacity range.
- Wheels and foldable stand — portable, ergonomic, one-person setup under 60 seconds.
- 8-model lineup from 3/8" thin-wall to 4" Schedule 80 — one supplier for all bending needs.
- Manual and electric options for every hydraulic tier — choose based on power and production volume.
- Global standards: GB/T 3091, DIN 2440, EN 10255, BS1387, CE certified with test reports.
Contact us today for a customized quotation with bulk pricing, OEM private labeling, and your specific voltage requirements.
