A grab bucket is matched to a material, not to a crane. Density decides the bucket volume, the material's behavior decides the jaw style, and your crane decides the drive type. Work through the checklist below and the grab that arrives will bite properly on the first cycle.
Pre-quote checklist, at a glance
#
What we need
Detail
Why it matters
1
Material & density
coal, grain, sand, scrap, sludge... + t/m³
Volume × density must match the crane's capacity
2
Material shape & size
fine / lump / long pieces
Determines jaw style and closing force
3
Drive type
mechanical (rope) / electric motor / electro-hydraulic
Depends on your crane's hoists and controls — see below
4
Rated load & volume
t and/or m³
Grab + material together must fit the crane rating
5
Environment
corrosive / explosive / wet / hot
Drives material choice, coatings and explosion-proof builds
Mechanical (rope) grabs use the crane's own hoist ropes — no power to the grab, simple and robust, but they need a suitable double-drum hoist. Electro-hydraulic grabs carry their own power pack and work from any single-hook crane, opening and closing independently — the usual choice when retrofitting a grab onto an existing crane. Motor grabs suit dedicated, high-cycle duty. If you're specifying the crane and grab together, say so — a purpose-built grab overhead crane is usually more efficient than a general crane plus attachment.
Buyers' FAQs — straight answers
What capacity range do your grabs cover?
Standard models run roughly 1–10 t rated load, with custom builds outside that range per project.
Will it fit my existing crane?
Most standard cranes take a grab via hook or quick coupler; send your crane's capacity, hook type and (for rope grabs) hoist drum configuration and we'll confirm compatibility before you order.
What about lead time and warranty?
Typical lead time is 4–6 weeks depending on customization; warranty is 12 months covering manufacturing defects and faulty components. CE certification and compliance documentation ship with the grab.
What maintenance does it need?
Routine greasing of pins and moving parts plus wear inspection of jaw edges and (for hydraulic types) hoses and seals — minutes per shift, not hours.
Copy, fill, send
Material: ___, density ___ t/m³, size: fine / lump / long Drive: mechanical / electro-hydraulic / motor / advise me Rated load: ___ t or volume ___ m³ | Environment: ___ My crane: capacity ___ t, hook type ___ | Space limits: ___ Extras: remote / automation / certificates / timeline: ___
Thank you for your interests in Kinocranes. Please feel free to submit your inquiry information to us. Our sales manager will contact with you as soon as possible.
Customized Crane
