Machinery attachments / Stone Gripper
Overview
A stone gripper picks and places individual rocks, concrete blocks and kerb units without the operator leaving the cab. The narrow jaw profile reaches into tight spots where a bucket cannot get a clean bite.
The SG20-S40 is specified at 150 kg. It mounts on S40; if your machine uses a different pattern we build to your pin dimensions instead.
Specifications
| Item | Value |
|---|---|
| Model | SG20-S40 |
| Weight | 150 kg |
| Mount / coupler | S40 |
Where it works
- Placing boulders and rockery stone in landscaping
- Setting kerbs, edging and concrete blocks
- Wall building and dry-stone work
- Handling demolition rubble and concrete lumps
- River and bank stabilisation work
Build and materials
- Hardened jaw tips for gripping abrasive stone
- Reinforced pivot points and hydraulic cylinder with protected rod
- Compact body for working close to walls and trenches
- Hoses and couplers supplied with the unit
Mounting and compatibility
Supplied on an S40 coupler mount. The jaws are sized for the carrier class, so confirm the machine weight and the largest stone you intend to lift.
Packing and delivery
Units are packed on an export frame or in a plywood crate, strapped and corner protected. We photograph the packed unit before dispatch and send the loading plan with the shipping documents. Tell us the destination port and we confirm the freight basis – FOB, CFR or CIF – in the quotation.
Frequently asked questions
How heavy a stone can it lift?
That is set by the carrier, not the gripper. Stay within roughly half the machine’s rated lift capacity at the reach you work at, and remember the gripper’s own weight counts.
Can the jaws be changed for different materials?
Jaw profiles can be built for stone, timber or scrap on request. Tell us the material mix and we advise on the profile.
Does it need a hydraulic circuit?
Yes, one auxiliary circuit with flat-face couplers. Confirm your machine’s flow and pressure when you request the quotation.
Request a quotation
Send your machine model, coupler size and quantity to sales@kaivoy.com or use the inquiry form. You get a quotation with packing dimensions and lead time, and the drawing for confirmation before production.
Full dimensional data for the range is on the attachments specification page.