Bessey Tools
Bessey Tools SQ-20 20 in Bar Clamp 5 1/2 in Throat Depth 660 lb Force
A 20 in bar clamp delivering 660 lb clamping force with a 5 1/2 in throat depth for industrial holding tasks
- TypeClamps
- MaterialHAWA
- Weight8.2
- 20 in clamping capacity handles wide workpieces
- 660 lb clamping force secures heavy joints
- 5 1/2 in throat depth reaches deep sections
- Steel bar and handle resist bending under load
- 2 lb weight provides stable positioning
20 inch bar clamp for industrial use
The Bessey SQ-20 bar clamp provides a 20 in clamping capacity and 660 lb of force for heavy-duty holding tasks. Its 5 1/2 in throat depth allows reach over wide workpieces. A steel bar and steel handle deliver the rigidity required in industrial environments. The standard jaw pads measure 1 1/2 in wide to distribute pressure evenly.
Sustained clamping behaviour under load
The 5/8 in thick steel bar resists bowing when the spindle applies maximum force across the full 20 in span. A 13/16 in spindle diameter transmits torque without flex, keeping pressure consistent during long glue-ups or fabrication holds. The bar slide mechanism maintains alignment so the jaws stay parallel under continuous load. Steel handle construction prevents the flex that reduces effective force over time.
Build quality and daily mounting implications
Overall width of 8 1/4 in fits between common fixture spacings while the 4 5/8 in handle length gives leverage without excessive swing radius. At 8.2 lb the clamp is substantial enough to stay planted yet light enough for frequent repositioning. Steel bar and handle surfaces withstand shop abrasion and repeated tightening cycles. Standard jaw pads can be replaced or supplemented with custom faces for specialised work.
Highlights
- 20 in clamping capacity handles wide workpieces
- 660 lb clamping force secures heavy joints
- 5 1/2 in throat depth reaches deep sections
- Steel bar and handle resist bending under load
- 2 lb weight provides stable positioning
Specifications
| Brand | BESSEY |
|---|---|
| Type | Clamps |
| Material | HAWA |
| Weight | 8.2 |
Questions about this item
How much force does the 660 lb clamp generate during extended use?
The clamp delivers a maximum clamping force of 660 lb through its steel spindle and bar mechanism.
What workpiece thickness fits within the 5 1/2 in throat depth?
The 5 1/2 in throat depth accommodates workpieces up to that depth from the bar edge.
Will the 20 in capacity bar align with my existing 13/16 in spindle accessories?
The spindle diameter is 13/16 in, matching common accessory sizes for this clamp class.
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