
JS8642-1 Export Version Heavy duty Dual-Claw Vacuum Glass Suction Cup
The export version of the dual claw, rated 100 KG level suction and 120 KG vertical, in black.

Product Overview
The export version of the dual claw, rated 100 KG level suction and 120 KG vertical, in black. It is one of the models where the vertical figure is higher than the horizontal, which is a reminder that the two numbers are measured separately and should not be assumed from each other.
Why Buyers Choose This Model
120 KG Vertical Suction
Higher than its own 100 KG level figure, which is unusual and worth knowing if your customers carry panels upright.
Black Finish As Standard
Supplied black, which suits professional ranges and hides the marks a working lifter picks up.
Die-Cast Aluminium Body
Die-cast aluminium alloy casing over a thickened aluminium main body, formed by integral die-casting for hardness and wear resistance.
Enlarged Cup With Deeper Grooves
As the cup grows larger it gains deeper grooves, which increases suction power, safety and stability.
Where It Is Used
- Panels carried upright where the vertical rating governs
- Export markets specifying a black finish
- Glass and ceramic tile transport and installation
- Professional glazing ranges
The Buyers This Model Suits
Glazing Crews Carrying Upright
The 120 KG vertical figure is the relevant one for panels moved upright, and it is higher here than on the standard JS8642.
Export Distributors
This version exists for export market requirements, in a black finish.
Tile Installers
Handles large-format tiles where two claws control the panel better than one.
What It Fixes
Assuming Horizontal Is Always Higher
On this model it is not: 100 KG level against 120 KG vertical. Read both figures on every model.
Panels Pivoting On A Single Cup
Two claws control the rotation as well as the weight.
Finishes Marking Up In Service
Black hides what a working lifter collects.
How It Is Built
Dual-Claw Design
The dual-claw design is suitable for the transportation and installation of glass, ceramic tiles, and similar materials, offering stability and reliability.
Vacuum Suction Principle
The vacuum is created when the press button is engaged, utilizing rubber’s sealing properties for effective lifting.
Die-Cast Aluminum Alloy Casing
The high-quality die-cast aluminum alloy casing enhances stability during operation.
Alloy Main Body
The main body is created through a thickened aluminum alloy integral die-casting process, offering high hardness and wear resistance.
Reinforced Plastic Press Button
The reinforced plastic press button ensures effortless operation, secure locking, and durability.
Thickened Nitrile Rubber Pad
The thickened nitrile rubber pad retains strong suction power, enduring adhesion, and weather resistance.
Enlarged Suction Cup Design
As the suction cup grows larger, it features deeper grooves for increased suction power, enhanced safety, and superior stability.
Ergonomic Widened Anti-Slip Handle
The widened anti-slip handle boasts ergonomic design, providing a comfortable grip tailored for men.
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 | 100kg |
| Vertical Suction | 120kg |
| Packing | 1PC/ inner box, 20pcs/ CTN |
| Color | black, or customized |
| Carton Size | 52*34*42 |
| Colour options | black, or customized |
| Packing | 1PC/ inner box, 20pcs/ CTN |
| Minimum order | 2000pcs for a customised version |
| Customisation | Colour, packing method, carton appearance and logo |
How This Model Is Made
Parts for the JS8642-1 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
Clean and dry the panel surface completely before applying either claw.
Step 2
Seat both pads flat before pressing the buttons, so neither pad starts partly loaded.
Step 3
Size against orientation: use the 120 KG vertical figure for panels carried upright, with margin.
Step 4
Release both vacuums before storage and check the nitrile pads for hardening and grit.
How It Compares In Our Range
The dual-claw family, by rating.
| JS8642 | 90 KG horizontal and 70 KG vertical at 750 g, in yellow, golden or silver. |
|---|---|
| JS8642-2 | Heavy duty double claw at 795 g, 130 KG level and 110 KG vertical, in black. |
| JS8642-4 | Extra heavy at 1000 g, 140 KG horizontal and 120 KG vertical. |
JS8642-1 Questions
What are the load ratings?
100 KG level suction and 120 KG vertical suction. On this model the vertical figure is the higher of the two, which is not the case on every lifter in the range.
What does export version mean?
It is based on the JS8642 model with the same features, finished in black for export market demand. The mechanism and construction are the JS8642's.
What is the body construction?
A die-cast aluminium alloy casing over a thickened aluminium alloy main body formed by integral die-casting, with a reinforced plastic press button and thickened nitrile rubber pads.
How is it packed?
One piece per inner box, 20 pieces per master carton at 52 x 34 x 42 cm.
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 JS8642-1
Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.



