Product Introduction
Our Welding Locking Clamp Pliers (U-Jaw Locking Clamps) are engineered specifically for steel pipe butt-jointing, steel plate alignment, and welding positioning. The specialized U-shaped jaw design firmly holds adjacent pipes or plates in alignment while leaving an unobstructed pass-through window for the welding torch or rod, maximizing welding precision and efficiency. Forged alloy steel jaws, a high-tensile stamped steel frame, and whole-body heat treatment ensure extreme spatter resistance, structural rigidity, and a powerful 227kg clamping force.
Product Features
- Specialized Welding U-Jaws: Unique open U-shape architecture holds adjacent steel pipes and plates in perfect alignment, allowing direct torch access for tack welding.
- Forged Alloy Steel Jaws: Premium alloy steel forged jaws with whole-body heat treatment resist high heat, welding spatter, and heavy wear.
- Heavy-Duty Stamped Steel Body: Precision-stamped from high-tensile alloy steel plate to prevent handle flexing under high clamping pressure.
- 227kg Powerful Clamping Force: Delivers a dependable 227kg holding force to prevent thermal distortion and slippage during welding.
- Precision Tail Screw Adjustment: Threaded screw mechanism enables easy micro-adjustment of jaw opening size and locking force.
- Anti-Pinch Safe Release Trigger: Intuitive safe-release lever cushions disengagement, preventing violent snap-backs and protecting operator hands.
Specifications Table
| Item No. | Model | Size | L | Max Capacity | Throat Depth S | Clamping Force | Box Qty | Ctn Qty | Net Wt | Gross Wt |
|---|---|---|---|---|---|---|---|---|---|---|
| W29258 | DLY-I-9 | 230 mm (9″) | 230 mm | 70 mm | 60 mm | 227 kg | 3 pcs | 24 pcs | 0.549 kg | 15.00 kg |
| W29259 | DLY-I-10 | 250 mm (10″) | 250 mm | 90 mm | 76 mm | 227 kg | 2 pcs | 16 pcs | 0.775 kg | 14.08 kg |
Applications
- Pipe Butt Welding & Alignment: Clamps adjacent cylindrical metal pipes or tubing in concentric alignment for joint welding.
- Steel Plate Seam Welding: Holds overlapping or flush-fit metal plates flat together across seams during sheet fabrication.
- Structural Steel Fabrication: Secures pipes to angle irons, channels, or square tubing for frame assembly.
- Auto Body & Chassis Fabrication: Holds frame components and sheet panels in place during repair and custom welding.
Why Choose Us
- Direct Factory Wholesale: Direct manufacturing pricing eliminates middleman markups, ensuring superior profit margins for tool distributors.
- Welding-Optimized Geometry: Purpose-built U-jaw profile provides ideal torch clearance, tested for demanding daily welding tasks.
- Industrial-Grade Durability: Whole-body heat-treated alloy steel resists flexing, warping, and welding spatter adhesion under heavy shop use.
- Global Export Readiness: Standardized export packaging specs and strict quality control guarantee reliable international container fulfillment.
OEM/ODM Services
We provide flexible OEM/ODM manufacturing solutions tailored to your market requirements:
- Custom Branding: Laser engraving or precision steel stamping your brand logo on the handle/clamp body.
- Dipped PVC/TPR Grips: Add ergonomic single or dual-color handle sleeves matched to custom Pantone colors.
- Corrosion-Resistant Finishes: Choice of Nickel Plating, Black Phosphate, or Sandblasted anti-rust coatings.
- Retail & Industrial Packaging: Tie-on cards, double blister packs, display boxes, and customized master cartons.
FAQ
Q1: Why are welding locking pliers designed with a U-shaped jaw?
A1: The open U-shape allows the clamp to bridge and secure two adjacent pipes or plates while leaving an open center window, giving the welder direct torch access and unhindered line-of-sight to the joint.
Q2: What is the difference between the 9″ and 10″ models?
A2: The main differences are clamping capacity and throat depth. The 230mm (W29258) handles up to 70mm capacity with a 60mm throat depth, while the 250mm (W29259) expands to 90mm capacity with a 76mm throat depth. Choose based on your common pipe outer diameters.
Q3: What is the clamping force capacity of these pliers?
A3: Both the 230mm (W29258) and 250mm (W29259) models deliver a dependable holding force of up to 227kg.
Q4: What is the “anti-pinch / safe release” feature?
A4: The safe release lever (anti-pinch) cushions the disengaging tension when unlocking high-pressure clamps, preventing violent snapping that can pinch fingers and enabling safe, smooth one-handed release.
Q5: What are the packaging specs and MOQ for bulk orders?
A5: 9″ (W29258) comes 3 pcs/box, 24 pcs/ctn (GW 15.00kg); 10″ (W29259) comes 2 pcs/box, 16 pcs/ctn (GW 14.08kg). Standard stock items have low MOQs, while custom OEM orders start at 1,000 pcs.
