Single Rope Touchdown Grab Bucket
APR Bright Industries manufactures single rope touchdown grab buckets — the ideal choice for single-drum cranes where external power isn’t available. Built for superior penetration into iron ore, soda ash, coal, sand, and bulk grains without leakage, our mechanical grab buckets self-lock and self-unload, keeping bulk handling under the crane operator’s precise control.
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Built to Your Crane’s Lifting Capacity
Custom Wire Rope
Highly flexible 6×36 construction, galvanized for all environments. Typical diameters: 16mm to 32mm.
Optimized Weight-to-Volume Ratio
Grab dead-weight is customized to maximize your crane’s Safe Working Load (SWL).
Mechanical Precision
Fully hardened and tempered pins and axles (220–260 BHN) for low-friction operation.
| Maximum Capacity | Up to 6 CBM (Cubic Meters) |
| Material Handling Density | Optimized for up to 3.0 t/cbm |
| Mechanism Type | Automatic Self-Locking & Touchdown Unloading |
| Structural Material | Heavy-Duty Mild Steel / Hardened Pins (220–260 BHN) |
| Wire Rope Spec | 6×36 Galvanized (16mm to 32mm Diameter) |
| Best For | Single-Drum Cranes, Ship-to-Shore, Deck Cranes |
How It Works — Four Stages
APR Bright Industries uses a reliable mechanical locking system that operates in four stages, entirely without external power.
Placement
The touchdown grab is lowered, in the open position, onto the material heap.
Engagement
Once the grab touches the ground, further lowering of the crane hook slackens the wire rope, causing the internal locking lever to shift into the closing position.
Hoisting & Digging
As the hook is raised, the grab’s jaws close automatically, gripping the material with high closing force.
Discharge
When the filled grab is lowered onto the discharge point — hopper or ground — and the rope slackens again, the mechanism resets. On hoisting, the grab opens itself to release the material.
4 × 1.0 m³ Single Rope Grabs, Delivered for TATA Group
This isn’t a concept render — it’s a specialized order built and shipped to specification for one of India’s largest industrial groups, running in active service today.
See It in Operation
Touchdown & Single-Line Grab: FAQ
Touchdown grabs are purely mechanical, making them a simpler and more cost-effective choice for operators. They’re ideal for applications where material is consistently discharged onto a heap or into a hopper. Most importantly, they require zero electricity and zero battery maintenance, reducing long-term operational overhead.
We provide fully customized grab solutions for bulk material handling with capacities of up to 6 CBM. Our engineering team designs the bucket geometry to match the specific material density and the lifting capacity of your crane.
Absolutely. For maritime operations, we use marine-grade galvanized wire ropes and specialized corrosion-resistant coatings, ensuring the grab maintains long-term reliability during ship-to-shore unloading, deck crane operations, and exposure to salt spray.
The opening and closing mechanism of our single-cable grab bucket handles the loading and unloading process automatically. Through the touchdown principle, the bucket manages the cycle by itself, making it an excellent set-and-forget solution for bulk commodities.