**Product Specifications for Enjue Hydraulic Grapples**
**Model No.:** Enjue-6721
**Trademark:** Enjue
**Specification:** Excavator Grab
**Origin:** China
**HS Code:** 84314100
The Enjue Hydraulic Grapples are ideal for a wide range of applications, including:
- Material handling
- Removal of broken pieces
- Scrap sorting/loading
- Trash recycling
- Handling of wood, stone, construction waste, and household garbage
These grapples come in a variety of widths and tine configurations to suit different needs. Each version is custom-made to meet the specific requirements of the user. The hinge joint features mechanical butter and steel bushings for enhanced durability. The teeth are reinforced with NM400 material, ensuring longer service life. The operator controls the opening and closing of the hinge joint via a cylinder, which can be easily connected to the excavator using hydraulic hoses.
Key Features:
- Excellent operation with cylinder installation
- Designed for minimal height to load/unload objects at high places
- Uses qualified raw materials to extend durability
- Easy installation on excavators
- Compatible with quick couplers
**25T Remote-Control Bulk Grab Specification:**
- **Grab Type:** 25/25T Remote-Control Bulk Grab
- **Model:** YK25 [8-10-12] 10B-00
- **Technical Parameters:**
- Empty Grab Opening Time: 12 seconds
- Cubage: 6–12 m³
- Empty Grab Closing Time: 18 seconds
- Rated Load: ~16 tons
- Density: ~1.0–2.0 tons/m³
- Grab Dead Weight: ~9.2 tons
**Technical Standards:**
1. Materials used include Q345B, 42CrMo, HARDOX400, and HRC50. The scoop is made from Q345B, axes from 42CrMo, and lips from HARDOX400.
2. All holes in the upper beam, poles, lower beam, and scoops are machined to ensure concentricity and precision.
3. All steel parts are sand-blasted before machining, followed by a coating of more than 160 microns.
4. Lubrication systems are integrated into the joints to ensure smooth operation and prevent damage.
5. All critical areas are beveled, and welds undergo non-destructive testing with first-class weld quality.
6. Hydraulic components such as cylinders and valves are sourced from reputable manufacturers.
7. The grab operates smoothly with no excessive noise, and the double clamshell design ensures synchronized opening and closing.
8. Dimensional tolerance is less than 10 mm, with most installation tolerances under 3 mm.
9. Grabs are connected to crane hooks with links that can safely lift three times the rated weight.
10. Installation positions of vulnerable parts are designed for easy replacement.
11. Each grab is marked with the ENJUE nameplate, serial number, and rated load.
12. All technical requirements comply with national and enterprise standards.
**Technical Parameters (continued):**
- **SWL:** SWL 25 T
- **Sheave Diameter:** 650 mm
- **Wire Rope Diameter:** 36 mm
- **Stroke:** –1529 mm
- **Maximum Width When Open:** 3828 mm
- **Working Height:** 10000 mm
- **Dead Weight:** ~9.2 T
**Materials Used:**
1. Scoop: Q345B
2. Stay Bar: Q345B
3. Bolster Structure: Q345B
4. Pulley: Q345B (hot rolled)
5. Pulley Axle: 42CrMo, strengthened
6. Pulley Axletree: China's famous brand bearings
7. Axes: 42CrMo, strengthened
8. Bushing: ZGMn13
9. Bottom Lips: HARDOX500
10. Parts List: As per chart
**Component Brands:**
| Component | Brand |
|---------------------|--------------------|
| Remote Control | APLLO |
| Sealing Parts | PARKER (USA) |
| Solenoid Valve | VICKERS (USA) |
| Hydraulic Oil Pipe | EATON, MANULI |
| Batteries | STK (USA) |
| Cylinder | Local Famous Brand |
| Wire Rope | Local Famous Brand |
**Welding & Painting Standards:**
- **Welding:** Protected by gas to minimize stress and prevent cracking.
- **Painting:** Surface treated to Sa2.5 grade, with a primer and top coat of 80 μm each. Top color is customizable based on customer preference.
**Working Principle:**
- **Closing Cycle:** When the grab opens, the moving board connects with the top beam and separates from the bottom beam. The hydraulic system opens, pulling the piston out. When the grab closes, the crane hook lowers, and the moving board moves down with the piston. When it hits the switch, the valve stops the hydraulic oil, allowing the grab to close.
- **Opening Cycle:** Pressing the remote control sends a signal to the receiver, opening the valve and extending the hydraulic vat. This allows the grab to open, ready for the next cycle.
**Other Technical Parameters:**
- **Working Voltage:** 24V DC
- **Remote-Control Distance:** >100 meters (line of sight)
- **Frequency:** 321 MHz (transmit), 331.7 MHz (receive)
- **Charger:** Input 110–220V, Output 2.2A
- **Battery:** 120 hours of continuous use (DC 12–24V, new batteries)
**Remarks:**
- A buffer device is installed on the hydraulic valve to reduce impact force during opening, prolonging the life of the hydraulic system.
- Free accessories included with each 2–4 grapples: hydraulic seals, tools, remote control, battery, charger, and grease nipples.
**Quality Assurance:**
- Global service provided within 18 months from delivery or 12 months from operation.
- Import parts like hydraulic valves and pipe adapters are covered under supplier warranty.
**Documents Provided:**
- General drawing, wear parts images, part catalog, user manual, maintenance manual.
- One copy of Product Qualification Certificate (CCS, BV, RINA upon request).
**Picture Reference:**
(Include product images for reference.)
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