DRILLING BUCKETS — TYPE 07
Grab Head
Hydraulic jaw-type grab head with hardened cutting edges on a Q355/NM400 body. Designed for removing sediment, debris, and collapsed material from boreholes — and for extracting large spoil that cannot be lifted by standard drilling buckets.
JAW OPENING
600 – 2000 mm
FUNCTION
Spoil extraction
JAW TYPE
Dual hinged
CUTTING EDGE
Hardened steel
BODY MATERIAL
Q355 / NM400
KELLY BOX
Universal interchangeable
Product Overview
The ALVRIQ Grab Head is a specialized attachment for extracting loose material, sediment, and collapsed debris from boreholes where standard drilling buckets cannot operate effectively. Unlike a rotating bucket, the grab head uses a dual-jaw mechanism that opens on descent and closes on retrieval, clamping spoil between hardened cutting edges for vertical removal.
The body is fabricated from Q355 structural steel with NM400 wear strips on the jaw edges and hinge points. The jaws feature interlocking tooth profiles that grip irregular objects — collapsed concrete fragments, large rock pieces, or compacted clay lumps — securely during extraction. A heavy-duty hinge pin system ensures reliable operation under high cycle loads.
A universal kelly box connection (interchangeable with SANY, Zoomlion, XCMG, and BAUER rotary drilling rigs) makes this grab head compatible with virtually all major drill rig brands without modification.
At a Glance
Key Features
Dual-Jaw Mechanism
Two interlocking jaws open on descent and close on retrieval, clamping spoil between hardened tooth profiles. Grips irregular objects — rock fragments, concrete pieces, clay lumps — securely for vertical extraction.
Close-Pull Action
Jaws close mechanically on the upward pull via kelly-driven torque, requiring no additional hydraulic lines. The simple, robust mechanism has fewer failure points than motorized grab systems.
NM400 Wear Strips
NM400 (400 HBW) wear-resistant steel on jaw edges, hinge points, and contact surfaces. Combined with manual hardfacing overlay for extended service life when extracting abrasive debris.
Universal Kelly Box
Interchangeable kelly box fits SANY, Zoomlion, XCMG, and BAUER rotary drilling rigs. No adapter needed — simply bolt on and start extracting.
Suitable Conditions
Recommended For
Not Recommended For
Specifications
| Jaw Opening (mm) | Grab Capacity (m³) | Jaw Type | Cutting Edge | Body Material | Weight (kg) |
|---|---|---|---|---|---|
| 600 | 0.12 | Dual hinged | Hardened | Q355 / NM400 | ~110 |
| 800 | 0.22 | Dual hinged | Hardened | Q355 / NM400 | ~180 |
| 1000 | 0.34 | Dual hinged | Hardened | Q355 / NM400 | ~270 |
| 1200 | 0.50 | Dual hinged | Hardened | Q355 / NM400 | ~380 |
| 1500 | 0.78 | Dual hinged | Hardened | Q355 / NM400 | ~590 |
| 2000 | 1.38 | Dual hinged | Hardened | Q355 / NM400 | ~980 |
* Specifications are indicative and may vary by configuration. Custom jaw openings up to 2000 mm available on request.
Product Gallery
How to Order
Specify Requirements
Tell us your drilling rig model, required jaw opening, and the type of debris you need to extract. We’ll recommend the optimal jaw profile.
Confirm Quote
Receive a detailed quotation within 24 hours including specifications, lead time, and shipping terms. Confirm and proceed to production.
Production & Delivery
Manufacturing takes 15–25 days depending on specifications. Quality-tested and shipped to your project site worldwide.
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Ready to Order?
Send us your rig model, required jaw opening, and debris type. We’ll provide a detailed quote within 24 hours.
Or email: sales@alvriq.com