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Screw Action Vise Grip 10-20 kN – Self-Tightening Jaws
Dual-acting screw action grips whose articulating jaws tighten as load rises: 10 kN aluminum or 20 kN steel with 32, 50 or 100 mm openings.
Brand: Universal Grip | Model: UGC-VG-080 | ● Configured to order
Articulating jaws self-align and grip harder as tensile load increases
Both jaws move, centering symmetrical and asymmetrical specimens on the load axis
10 kN (2,248 lbf) aluminum version: 40 kN clamping at 80 Nm
20 kN (4,496 lbf) steel versions: 80 kN clamping at 160 Nm
Steel versions open to 32, 50 or 100 mm (1.26, 1.97 or 3.94 in)
Steel runs 0 to +350 °C, with a -70 °C low-temperature option
Standard jaws 40 x 60 to 60 x 200 mm plus quick-change insert jaws
Standards: EN 12311-2 · EN 12316-2 · EN 12317-2 · ASTM D1002
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Self-tightening screw action grips, 10 and 20 kN
The UGC-VG-080 is a workhorse screw action grip for plastics and rubber sheet, roofing membranes, adhesive joints, wood, textiles and foams. Its articulating jaws are drawn tighter as the specimen pulls. That means the operator only has to clamp firmly enough to seat the specimen; the test load supplies the rest. Both jaws move, so the grip is dual-acting and keeps the specimen on the load axis even when one face is thicker or coated, as with membranes or lap joints.
Aluminum or steel bodies
The 10 kN grip has an anodized aluminum body, a 32 mm opening and a 0 to +180 °C range, and weighs 2.36 kg (5.2 lb). Its screw builds 40 kN (8,992 lbf) of clamping force at 80 Nm. The 20 kN grips are nickel-plated steel and build 80 kN (17,984 lbf) at 160 Nm:
32 mm opening, 0 to +350 °C, 5.04 kg per grip
32 mm opening with a low-temperature range of -70 to +350 °C
50 mm opening, 5.6 kg per grip
100 mm opening, 6.2 kg per grip
Jaws
Standard jaws come in 40 x 60, 40 x 100 and 60 x 200 mm with blank, rubber, pyramid, V, wave and diamond faces, chosen to suit the material. For labs that switch materials often, quick-change insert jaws in 50 x 60 and 50 x 100 mm sit on carriers so a face can be swapped without removing the grip. Special jaws are made for lap shear specimens, where offset faces keep the bond line on axis, and water-cooled wave jaws for bitumen sheet.
Typical applications
With suitable jaws, the 10 kN version is used for plastic and rubber roof waterproofing sheets to EN 12311-2, EN 12316-2 and EN 12317-2. Adhesive lap shear joints, in tests such as ASTM D1002, wood, textiles and foams are other common jobs. More membrane and adhesive setups are on our adhesives testing page.
Choosing the right setup
The 10 kN grip fits a 10 kN Galdabini benchtop machine; the 20 kN steel grips suit a 25 kN frame and, thanks to their temperature range, work inside environmental chambers. Couplings are a female clevis for a 15.9 mm (5/8 in) or 20 mm pin, with adapters for others. For lighter specimens, the UGC-VG-100 U-form vise grip applies the same principle at 5 kN. The grips come in pairs or as single grips.
Tell us the capacity, opening, test temperature and coupling, plus your jaw choice, and we will quote the set: request a quote.
Product video
At a glance
Max. load: 10 kN (aluminum) or 20 kN (steel)
Clamping force: 40 kN at 80 Nm (10 kN); 80 kN at 160 Nm (20 kN)
Max. jaw opening: 32 mm, 50 mm or 100 mm
Body material: Aluminum, anodized, or steel, nickel-plated
Temperature range: 0 to +180 °C (aluminum); 0 to +350 °C (steel); -70 °C option
Coupling: Female clevis, Ø 15.9 mm (5/8 in) or Ø 20 mm pin; others via adapter
Screw Action Vise Grip 10-20 kN Specifications
MAX. LOAD
10 kN (aluminum) or 20 kN (steel)
CLAMPING FORCE
40 kN at 80 Nm (10 kN); 80 kN at 160 Nm (20 kN)
MAX. JAW OPENING
32 mm, 50 mm or 100 mm
BODY MATERIAL
Aluminum, anodized, or steel, nickel-plated
TEMPERATURE RANGE
0 to +180 °C (aluminum); 0 to +350 °C (steel); -70 °C option
COUPLING
Female clevis, Ø 15.9 mm (5/8 in) or Ø 20 mm pin; others via adapter
WEIGHT PER GRIP
2.36 kg (10 kN); 5.04–6.2 kg (20 kN)
STANDARD JAW SIZES
40 x 60, 40 x 100, 60 x 200 mm
SCOPE OF SUPPLY
1 pair of grips without jaws
PART REF.
UGC-VG-080
Models & Options
10 kN aluminum — 32 mm opening, 0 to +180 °C, 2.36 kg per grip (Specify at order)
20 kN steel, 32 mm — 0 to +350 °C, 5.04 kg per grip (Specify at order)
20 kN steel, low temperature — 32 mm opening, -70 to +350 °C (Specify at order)
20 kN steel, 50 mm — 50 mm opening, 5.6 kg per grip (Specify at order)
20 kN steel, 100 mm — 100 mm opening, 6.2 kg per grip (Specify at order)
Standard jaws 40 x 60 mm — Blank, rubber, pyramid, V, wave or diamond (Specify at order)
Standard jaws 40 x 100 / 60 x 200 mm — Blank, rubber, pyramid, wave or diamond (60 x 200: rubber, pyramid, wave) (Specify at order)
Insert jaws with carriers — Quick-change 50 x 60 or 50 x 100 mm faces; V inserts for Ø 4–24 mm (Specify at order)
Special jaws — Offset lap shear jaws, water-cooled bitumen jaws and others (On request)
What's Included
1 pair of screw action grips in the version ordered (single grips also available)
No jaws supplied with the grips; pick face and size from the jaw list
Insert jaws need carriers, also ordered separately
Clevis coupling for a 15.9 or 20 mm pin, adapters on request
Supported Test Standards
EN 12311-2 — Tensile properties of plastic and rubber roof waterproofing sheets
EN 12316-2 — Peel resistance of joints in plastic and rubber roofing sheets
EN 12317-2 — Shear resistance of joints in plastic and rubber roofing sheets
ASTM D1002 — Lap shear strength of adhesively bonded metal specimens
Compatible Grips & Fixtures
10 kN Benchtop Testing Machine — Galdabini frame matched to the 10 kN grip
25 kN Benchtop Testing Machine — Frame for the 20 kN steel grips
Environmental Chambers — Hot and cold tests with the steel versions
U-Form Vise Grip 5 kN — Lighter self-tightening grip for films and textiles
Adhesives Testing — Lap shear and peel setups
“Customer quote”
Related Equipment
UGC-VG-100 U-Form Vise Grip 5 kN
Self-tightening U-form screw action grips rated 5 kN, with 28, 50 or 106 mm openings and 10 kN clamping force at only 15
UGC-VG-070 Small Vise Grip 100 N
Miniature 100 N screw vise grip weighing 57 g, with interchangeable 15 x 15 mm jaws for fine wires, fibers, foils and sm
UGC-VG-090 Small Vise Grip 400 N
60 g aluminum screw vise grip rated 400 N, taking jaws from 10 x 25 to 10 x 100 mm for packaging films, paper, wires and
UGC-VG-060 Dynamic Vise Grip for Composites 100 kN
Bolt-clamped 100 kN vise grips for static and tension-tension fatigue tests on polymer composites, with chamber and wate
Screw Action Vise Grip 10-20 kN FAQ
How does a screw action grip tighten itself?
The jaws are articulated, so tensile pull on the specimen draws them closer together. The harder the test pulls, the harder the jaws grip.
What is the difference between the 10 kN and 20 kN versions?
The 10 kN grip is anodized aluminum with a 32 mm opening, for 0 to +180 °C. The 20 kN grips are nickel-plated steel with 32, 50 or 100 mm openings, for 0 to +350 °C or -70 to +350 °C.
Can it test roofing membranes?
Yes. With suitable jaws, the 10 kN version is used for plastic and rubber roofing sheets to EN 12311-2, EN 12316-2 and EN 12317-2.
Are jaws included?
No. Grips come as a pair without jaws, and you choose the face and size. Insert jaws also need carriers.
Which coupling does it use?
A female clevis for a 15.9 mm (5/8 in) or 20 mm pin; adapters cover other frames.
Can I run it in a temperature chamber?
The steel versions are rated to +350 °C and are intended for chamber use; see our environmental chambers.