
JS8642-2 Vacuum Dual Claw Suction Cup with Articulator
The articulating dual claw: an all-directional aluminium alloy knob lets the cup and handle pivot without restriction, so the lifter grips curved panels and works at angles a fixed cup cannot.

Product Overview
The articulating dual claw: an all-directional aluminium alloy knob lets the cup and handle pivot without restriction, so the lifter grips curved panels and works at angles a fixed cup cannot. 120 KG level suction and 140 KG vertical, with an upgraded pressure pad that prevents screw penetration for a traceless operation.
Why Buyers Choose This Model
Unrestricted Multi-Angle Articulation
The articulator allows multi-angle adjustment without restriction, which is what lets one lifter handle a curved panel and a flat one.
All-Directional Aluminium Alloy Knob
The knob facilitates comprehensive adjustment and locks the chosen angle, so the articulation is a setting rather than a wobble.
Traceless Upgraded Pressure Pad
An upgraded pressure pad prevents screw penetration, ensuring a traceless operation. On finished or coated glass that is the difference between a panel delivered and a panel rejected.
Steel Casing With Aluminium Body
A high-quality pressed steel casing for stability in operation, over a thickened aluminium alloy integral casting for hardness and wear resistance.
Where It Is Used
- Curved and angled glass panels
- Setting panels that must be rotated in transit
- Finished surfaces where marking is unacceptable
- Specialist glazing work
The Buyers This Model Suits
Specialist Glazing Crews
Works with curved glass and angled installations where a fixed cup simply cannot seat.
Finished-Surface Handlers
Moves coated or decorative panels where the traceless pressure pad matters more than the load rating.
Distributors With A Specialist Tier
The articulating models are the answer to enquiries a fixed-cup range cannot serve.
What It Fixes
Fixed Cups On Curved Glass
A fixed cup needs a flat plane. The articulator removes that requirement entirely.
Marks Left On Finished Panels
The upgraded pressure pad prevents screw penetration for a traceless result.
Rotating A Panel Mid-Lift
Multi-angle adjustment means the lifter follows the panel instead of the operator following the lifter.
How It Is Built
Dual Claw Design
Suitable for transporting and installing glass, tiles, and other materials, ensuring stability and reliability.
Vacuum Suction Principle
Depressing the latch creates a vacuum effect through rubber sealing, facilitating effective material lifting.
Alloy Integral Casting
Provides high hardness and wear resistance.
Articulator
Multi-angle adjustments without restrictions, enhancing flexibility.
Upgraded Pressure Pad
Prevents screw penetration, ensuring a traceless operation.
Anti-Slip Knob Handle
Thickened aluminum construction offers a secure grip; aluminum alloy components resist wear and protect.
All-Directional Aluminum Alloy Knob
Facilitates comprehensive adjustments, enabling efficient articulation.
Enlarged Suction Cup Design
Deeper concavity and stronger suction force with increased dimensions for enhanced safety and stability.
Published Figures For This Model
Every value below comes from our own product specification. Where a figure is not published we leave it out rather than estimating it.
| Net Weight | /g |
|---|---|
| Horizontal Suction | 120kg |
| Vertical Suction | 140kg |
| Packing | 1PC/ inner box, 10pcs/ CTN |
| Color | yellow, or customized |
| Carton Size | 40*80*62 |
| Colour options | yellow, or customized |
| Packing | 1PC/ inner box, 10pcs/ CTN |
| Minimum order | 2000pcs for a customised version |
| Customisation | Colour, packing method, carton appearance and logo |
How This Model Is Made
Parts for the JS8642-2 are produced in our own workshops in Jinli Town, Zhaoqing. This model uses both routes: its moulded components come off our five horizontal and three vertical injection moulding machines, and its metal parts come off our fifteen automatic punching machines, nine automatic lathes and three welding machines. Tooling is designed and cut in our own mould room, which is why a change to this model does not queue behind another factory's schedule.
Quality Control
- Every model is weighed against its declared net weight during production, so the carton weight on your packing list matches what arrives.
- Stamped parts are produced in house on 15 automatic punching machines and 9 automatic lathes, so dimensional consistency is controlled at source rather than inspected on arrival.
- Moulded parts come off 5 horizontal and 3 vertical injection moulding machines running up to 10,000 mould open-and-close cycles per day, with tooling maintained in our own mould room.
- The quality management system was certified to ISO 9001:2015 in August 2023, with a certificate valid to 31 July 2026.
- Cartons are counted against the packing list as they are loaded into the container at our own factory door.
Certifications
The quality management system was certified to ISO 9001:2015 in August 2023, under standard GB/T19001-2016, for the manufacture and sale of glass caulking guns and sealant guns. The certificate on file runs to 31 July 2026; ask us for the current renewal status before relying on it. A TUV Rheinland assessment was obtained in 2016.
Customisation Options
- Aluminium Tube Anodizing And Colouring: More than 10 colours available; the surface can be given a frosted texture.
- Aluminium Tube Painting: Up to 10 colours with customisable patterns.
- Aluminium Tube Laser Engraving: Engraved logos, text and patterns on stamped fittings and aluminium tubes.
- Self-Adhesive Logo Labels: Applied to the product in the position the buyer specifies.
- Multi-Colour Logo Printing: Paint screen printing in any colour, with several colours printed at once.
- Tag And Product Screen Printing: Screen printed tags and product markings, multi-colour capable.
Getting The Best Out Of It
Step 1
Set the articulation angle to match the panel before applying the cups.
Step 2
Lock the all-directional knob so the angle is fixed before taking weight.
Step 3
Seat both pads flat on the curved surface and draw both vacuums.
Step 4
Release both vacuums and free the articulation before storage, so the knob does not seize.
How It Compares In Our Range
Two articulating models in the range, one dual claw and one four claw.
| JS8644 | Four-claw articulating with an iron alloy link, 205 KG level and 220 KG vertical. |
|---|---|
| JS8642-4 | Extra heavy articulating with a steel body, 140 KG horizontal and 120 KG vertical. |
| JS8642 | The fixed dual claw at 90 KG horizontal, for flat panels only. |
JS8642-2 Questions
What does the articulator do?
It lets the cup and handle pivot through unrestricted multi-angle adjustment, so the lifter attaches to curved panels and at angles a fixed cup cannot reach. The all-directional aluminium alloy knob locks the chosen angle.
What are the load ratings?
120 KG level suction and 140 KG vertical suction. As on several articulating models here, the vertical figure is the higher of the two.
What does traceless operation mean?
The upgraded pressure pad prevents screw penetration, so the cup does not mark the panel. That matters on coated, decorative or finished glass.
How is it packed?
One piece per inner box, 10 pieces per master carton at 40 x 80 x 62 cm. Stock colour is yellow.
What is the minimum order quantity?
2,000 pieces for a customised version.
Trades That Use This Model
Glass And Curtain Wall
Sealant guns and vacuum lifters for crews who handle and seal glass all day
Tile And Stone Installation
Epoxy grout guns, pointing guns and slab lifters for tiling and stonework
Window And Door Manufacturing
Glazing, perimeter foaming and gap filling for window and door plants and installers
Guides That Cover This Model
Glass Suction Cup Load Ratings Explained
Horizontal and vertical suction are different numbers for good physical reasons. Reading the wrong one is how a lifter fails.
Planning MOQ Packing And Container Loading
How to build a mixed order from published carton dimensions, and what the minimum order quantity actually applies to.
Quote The JS8642-2
Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.



