Product Overview
A scrap grapple uses independent tines to conform around odd shapes. A demolition grapple is built for a different job—controlling bulky, rigid material with two wide, solid jaws. The broad clamping surface keeps a firm hold on chunky debris, while serrated edges bite into slick surfaces that would slip off a flat jaw. The deep jaw profile helps contain mixed loads during handling and swing.
Part of the TGEC excavator grapple lineup, the demolition grapple comes in four frame sizes—TG-DG02 through TG-DG08—matched to excavators from 3 to 40 tons. Operating pressure ranges from 110 to 200 bar across the model range, with each model specified for a different excavator class. If you're dealing mostly with irregular scrap metal, take a look at the multi-finger hydraulic scrap grapple.
Models & Specifications
Operating pressure and flow requirements increase with each model size, as each model is specified for a different excavator class and intended application load.
| Parameter | TG-DG02 | TG-DG04 | TG-DG06 | TG-DG08 |
|---|---|---|---|---|
| Compatible Excavator Class | 3–8 t (3.3–8.8 ton) | 8–15 t (8.8–16.5 ton) | 15–25 t (16.5–27.6 ton) | 25–40 t (27.6–44 ton) |
| Attachment Weight | 380 kg (838 lb) | 750 kg (1653 lb) | 1280 kg (2822 lb) | 1650 kg (3638 lb) |
| Max Jaw Opening | 1100 mm (43.3 in) | 1600 mm (63.0 in) | 2100 mm (82.7 in) | 2400 mm (94.5 in) |
| Operating Pressure | 110–150 bar (1595–2175 psi) | 120–160 bar (1740–2320 psi) | 150–180 bar (2175–2610 psi) | 160–200 bar (2320–2900 psi) |
| Required Hydraulic Flow | 30–60 L/min (7.9–15.9 GPM) | 50–90 L/min (13.2–23.8 GPM) | 80–120 L/min (21.1–31.7 GPM) | 120–180 L/min (31.7–47.6 GPM) |
Table data is for reference only. Actual specifications may vary based on the final configuration. Please contact the TianGe technical team for details.
Jaw Design & Clamping Force
The solid jaw is what makes this grapple different. Instead of open tines, it uses a broad steel plate with serrated edges along the top and bottom. When the jaws close on concrete block, the flat surface spreads clamping force across the whole contact area, gripping and repositioning bulky concrete and masonry pieces rather than poking through them. The serrations grab slick surfaces—wet concrete, plastic sheeting, smooth stone—that would slide right off a flat edge, and the deep jaw profile keeps the load contained during transport.
Jaw force depends on hydraulic pressure, cylinder size and the grapple's jaw geometry, and this grapple scales both across the model range. TG-DG02 runs at 110 to 150 bar with 30 to 60 L/min, suited for light demolition and small excavator sorting. TG-DG08 runs at 160 to 200 bar with 120 to 180 L/min, operating within the higher hydraulic pressure and flow range specified for larger carriers and heavier material-handling applications on 25 to 40 ton carriers. Each model is configured to the typical operating parameters of its excavator class.
Application Breakdown
Primary: Demolition & Structural Teardown
On demolition sites, this grapple breaks down and sorts mixed debris as the building comes down. The solid jaws grip and separate concrete block, masonry, rebar and metal framing, and load sorted fractions into separate containers. Serrated edges grip smooth concrete during processing, and the deep jaw profile helps contain mixed loads during handling and swing. For contractors who process material on site instead of hauling unsorted waste to a landfill, sorting recyclable fractions at the point of teardown can reduce the amount of mixed waste sent for disposal and simplify material recovery.
Secondary: Waste Transfer & Recycling Sorting
At waste transfer stations and MRFs, the demolition grapple sorts mixed C&D waste into designated bins for concrete, wood, metal, and general trash. The broad jaw surface can handle bulky items such as mattresses, furniture and large plastic pieces that may be difficult to capture with open-tine grapples, helping consolidate material in the container. The grapple also agitates piles: hovering over a waste pile and opening/closing the jaws loosens compacted material and exposes buried recyclable fractions.
Tertiary: Rock Handling & Site Prep
On site prep, landscaping, and riverbank projects, the grapple moves large rocks, boulders, and stone. Serrated edges grip smooth rock surfaces that would slip in a flat bucket, and the wide jaw opening handles big boulders. While this grapple isn't designed for primary rock breaking—that's a hydraulic breaker's job—it excels at moving and placing rock that's already broken or naturally sized for handling.
Carrier Matching
Carrier compatibility depends on more than excavator operating weight. Confirm auxiliary pressure and flow, lift capacity at working reach, mounting configuration and available clearance. The grapple weight and expected load should also be checked against the excavator's lift chart. Operating below the specified pressure range can reduce available clamping force, while insufficient hydraulic flow can increase jaw cycle time. A pressure and flow test under load is the surest way to confirm compatibility. Give us your excavator make, model, and auxiliary specs, and we'll confirm the right model.
Field Operation Tips
When processing concrete, approach with jaws partially open and close gradually so the serrated edges bite before you apply full force. For sections with exposed rebar, approach from the exposed side to help the jaws grip both the rebar and surrounding material. When sorting mixed debris, use the jaw width to your advantage: the broad surface can be used to spread material on the ground to expose buried fractions before grasping. Don't use the grapple as a hammer or pry bar—the solid jaws are made for clamping and grasping, not impact or levering, which can bend the jaw plates or damage cylinder rods. After heavy demolition work, inspect the jaw serrations for chipping or cracking and check cylinder rods for scoring from flying debris.
Request a Quote — Demolition Grapple
Send us your excavator make and model, operating weight, auxiliary flow and pressure, mounting or coupler type, preferred model (TG-DG02 / TG-DG04 / TG-DG06 / TG-DG08), primary application, and quantity. Our team will verify compatibility, confirm the right pressure and flow configuration, and provide a quote based on your specs and delivery terms. Dealers and OEMs welcome for volume supply, custom jaw configurations, and private-label options.
