Product Introduction
Our Model 33A Sliding Bar Locking Pliers (Locking F-Clamps) uniquely integrate the long-reach adjustment of a sliding F-bar with the high-pressure lever locking mechanism of locking pliers. The moveable jaw glides smoothly along the rail to instantly accommodate workpieces up to 610mm thick. Once adjusted to a specific thickness, it locks and unlocks rapidly with one hand, making it ideal for high-speed, repetitive production tasks. Built from precision-stamped alloy steel with forged jaws and whole-body heat treatment, it yields a formidable clamping force of ≥408kg for heavy-duty woodworking gluing, structural steel welding, and metal assembly.
Product Features
- Dual F-Clamp & Locking Mechanism: Combines fast sliding rail adjustment with heavy-duty snap-locking leverage, allowing quick lock/unlock for repetitive high-volume work.
- 0-610mm Extra-Large Capacity: Available in 12″ (305mm), 18″ (458mm), and 24″ (610mm) capacities, with custom rail lengths available upon request.
- ≥408kg Massive Clamping Force: Delivers a heavy-duty holding pressure of no less than 408kg to hold thick panels and heavy steel without slippage.
- Forged Alloy Steel Jaws: Premium forged alloy steel jaws with whole-body heat treatment for superior hardness and impact resistance.
- Heavy-Duty Stamped Steel Body: Frame and handle precision-stamped from high-tensile alloy steel plate to resist flex under extreme load.
- Precision Tail Screw Micro-Adjustment: Threaded screw mechanism allows easy fine-tuning of jaw gap and locking tension.
- Anti-Pinch Safe Release Trigger: Intuitive safe-release lever cushions disengagement force, preventing violent snap-backs and protecting hand safety.
Specifications Table
| Item No. | Model | Spec | L | Max Opening | Throat Depth S | Clamping Force | Box Qty | Ctn Qty | Net Wt | Gross Wt |
|---|---|---|---|---|---|---|---|---|---|---|
| W29279 | DL-33A-12 | 305 mm (12″) | 296 mm | 305 mm | 58 mm | 408 kg | 2 pcs | 12 pcs | 1.496 kg | 19.00 kg |
| W29280 | DL-33A-18 | 458 mm (18″) | 296 mm | 458 mm | 58 mm | 408 kg | 2 pcs | 12 pcs | 1.691 kg | 22.00 kg |
| W29281 | DL-33A-24 | 610 mm (24″) | 296 mm | 610 mm | 58 mm | 408 kg | 2 pcs | 12 pcs | 1.825 kg | 23.50 kg |
Applications
- Woodworking & Furniture Gluing: Clamping wide wooden panels, solid wood furniture frames, and cabinet doors across broad widths.
- Repetitive Assembly Line Clamping: Once set to a uniform thickness, enables rapid repetitive locking and instant one-handed release on high-speed production lines.
- Steel Fabrication & Welding: Securing thick steel plates, square tubing, and structural channels prior to joint welding.
- Machinery & Tooling Fabrication: Replaces traditional heavy F-clamps with faster, higher-pressure one-handed locking capability.
Why Choose Us
- Direct Factory Wholesale: Direct manufacturing pricing eliminates middleman markups, ensuring superior profit margins for tool distributors.
- Precision Slide Mechanism: Smoothly machined rail profile prevents jamming during adjustment while locking rock-solid under pressure.
- Guaranteed Clamping Force: 100% factory-tested to exceed 408kg holding force; whole-body heat-treated frame prevents flexing under load.
- Custom Rail Length Capabilities: Robust OEM manufacturing allows custom bar lengths beyond the standard 12″, 18″, and 24″ specs.
OEM/ODM Services
We provide flexible OEM/ODM manufacturing solutions tailored to your market requirements:
- Custom Bar Lengths: Custom rail opening capacities (e.g., 800mm, 1000mm+) built to your exact specifications.
- Custom Branding: Laser engraving or precision steel stamping your brand logo on the slide bar or clamp frame.
- 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: What is the difference between a 33A sliding bar locking plier and a standard F-clamp?
A1: Standard F-clamps require manual threaded screw turning, which is slow and tiring for repetitive work. The 33A Sliding Bar Locking Plier slides to position and locks instantly with a single press of the lever (delivering 408kg force), disengaging in a split second via the release trigger.
Q2: How does this clamp facilitate “repetitive clamping”?
A2: Once the sliding jaw and tail screw are set for a specific workpiece thickness, you simply engage and disengage the locking handle for split-second repetitive clamping without needing to re-adjust the rail or screw each time.
Q3: What are the max jaw capacity and clamping force?
A3: This series offers three maximum opening capacities: 305mm (12″), 458mm (18″), and 610mm (24″). All sizes deliver a heavy-duty clamping force of no less than 408kg.
Q4: What is the “anti-pinch / safe release” feature?
A4: The safe release lever (anti-pinch) cushions the disengaging tension when unlocking 408kg 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: All models are packed 2 pcs/inner box and 12 pcs/master carton (12″ GW 19.00kg, 18″ GW 22.00kg, 24″ GW 23.50kg). Standard stock items have low MOQs, while custom OEM orders start at 1,000 pcs.
