Vacuum Glass Suction Cups
JS8643-2 PowerMax Ultra-Heavy Duty Vacuum Suction Cup
The heaviest lifter in the catalogue: 235 KG level suction and 250 KG vertical, built on an oversized disc diameter.
Product Overview
The heaviest lifter in the catalogue: 235 KG level suction and 250 KG vertical, built on an oversized disc diameter. Everything else follows the three-claw family specification, and the oversized discs are what take it from 145 KG to 235 KG without adding a fourth claw.
Key benefits
Why Buyers Choose This Model
Oversized Disc Diameter
An exceptionally large disc diameter producing a more robust suction force. Disc area is the direct lever on capacity, which is how this model reaches 235 KG on three pads.
250 KG Vertical Suction
The highest figure in our whole range, and higher than its own 235 KG level rating.
Triangular Disc Support
Force distributed through a triangular support for heightened stability and reduced risk of detachment, which matters more at 250 KG than anywhere else in the range.
7 mm Pad And ABS Latch
A 7 mm thickened rubber pad for suction and adhesion across surfaces, with an engineering-grade ABS latch with anti-slip grooves for reliable one-press operation.
Application scenarios
Where It Is Used
- The heaviest glass and ceramic tile panels
- Industrial glass handling
- Fleet and rental equipment at the top of a range
- Work where a fourth claw cannot be seated
Who it is for
The Buyers This Model Suits
Industrial Glass Handlers
Moves panels at the top of what hand lifting can manage, where capacity is the only criterion.
Heavy Glazing Contractors
Handles ceramic tile and glass panels that no other lifter here is rated for.
Distributors Needing A Flagship
250 KG vertical is the single largest number in the catalogue and anchors the top of a range.
Problems it solves
What It Fixes
Panels Beyond Every Other Lifter
235 KG level is 30 percent above the next highest figure in the range.
Detachment Risk At High Load
The triangular support distributes force so that no single pad carries a disproportionate share.
Latch Operation Under Load
A single press and release completes the operation, with anti-slip grooves for gloved hands.
Technical features
How It Is Built
Oversized Disc Diameter
The JS8643-2 boasts an large disc diameter, resulting in an even more robust suction force. This added diameter augments its gripping power, ensuring secure handling of heavy loads.
Alloy Monolithic Construction
Crafted from aluminum alloy through precision pressing, guaranteeing outstanding pressure resistance and anti-drop capabilities for enhanced durability.
Triangular Disc Support
Designed with a triangular disc support system, distributing force through triangular support for heightened stability and reduced risk of detachment.
Thickened Rubber Pad
Equipped with a 7mm thickened rubber pad, delivering potent suction force and steadfast adhesion across diverse surfaces.
Engineering ABS Latch
Features an engineering-grade ABS latch with anti-slip grooves, allowing effortless operation and reliable support for improved usability.
Anti-Slip Handle Design
Prioritizing user experience and safety, incorporating an anti-slip handle design to ensure comfortable grip and increased security during use.
Simple Locking Mechanism
A user-friendly locking mechanism that streamlines the operation through a single press and release.
Premium Nitrile Rubber
Utilizes high-quality nitrile rubber known for excellent oil, abrasion, and heat resistance, as well as strong adhesive properties, ensuring enduring performance across various conditions.
Specifications
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 | 235kg |
| Vertical Suction | 250kg |
| Packing | 1PC/ inner box, 10pcs/ CTN |
| Color | orange, or customized |
| Carton Size | 35*45*49 |
| Colour options | orange, or customized |
| Packing | 1PC/ inner box, 10pcs/ CTN |
| Minimum order | 2000pcs for a customised version |
| Customisation | Colour, packing method, carton appearance and logo |
Materials and manufacturing
How This Model Is Made
Parts for the JS8643-2 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.
Use guide
Getting The Best Out Of It
Step 1
Clean and dry all three contact areas thoroughly; at this rating surface condition dominates.
Step 2
Seat all three oversized discs absolutely flat before operating any latch.
Step 3
Draw all three vacuums and confirm each holds independently before taking weight.
Step 4
Never rely on the level figure for upright carrying or the reverse, and inspect all three 7 mm pads before every lift.
Comparison
How It Compares In Our Range
The heaviest lifter we make.
| JS8643-1 | The same family at 145 KG level and 155 KG vertical, without the oversized discs. |
|---|---|
| JS8644 | Four-claw articulating at 205 KG level and 220 KG vertical, for angled work. |
| JS8642-5 | Super heavy dual claw at 180 KG horizontal, where a third pad will not fit. |
FAQ
JS8643-2 Questions
What are the load ratings?
235 KG level suction and 250 KG vertical suction. The 250 KG vertical figure is the highest in our entire catalogue.
How does it reach that from the JS8643's 115 KG?
An exceptionally large disc diameter. Suction capacity scales with pad area, so oversized discs raise capacity without adding a fourth claw.
What is the body construction?
Aluminium alloy monolithic construction through precision pressing, with a triangular disc support system, 7 mm thickened rubber pads, an engineering ABS latch and premium nitrile rubber.
How is it packed?
One piece per inner box, 10 pieces per master carton at 35 x 45 x 49 cm. Stock colour is orange.
Is it certified for lifting?
No. These are our own published ratings and no third-party lifting certification exists for this model. At this capacity in particular, raise certification requirements before ordering.
Related products
Other Models In Vacuum Glass Suction Cups
Industries
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
Further reading
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 JS8643-2
Send the quantity and your colour and packing requirements, and we will confirm the minimum and a production date.