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3 Ton Backhoe Loader
ZT688
Features
3-Ton Loading Capacity with a 1.6 m³ Loader Bucket
The ZT688 combines a 3-ton loading capacity with a 1.6 m³ front bucket, allowing operators to move more material in each cycle and improve loading efficiency across construction and material-handling applications.
Italian Carraro Rear Wet Axle for Reliable Drivetrain Performance
Equipped with an Italian Carraro rear axle with wet braking, the ZT688 provides a robust drivetrain solution for demanding working cycles. The proven axle design supports stable power transmission and controlled braking during frequent loading and travel operations.
82 kW Cummins Engine for Productive Working Performance
Powered by a 82 kW Dongfeng Cummins 4BTA3.9-C110 engine, the ZT688 delivers the power required for loading, excavation and site travel. The engine is matched with an electronically controlled transmission to provide practical power delivery across different working cycles.
Crab Steering for Lateral Positioning Without Turning
The ZT688 features a crab steering function that allows the machine to move laterally while maintaining its overall travel direction. This provides an additional maneuvering option when working alongside trenches, walls or other obstacles and can make positioning more efficient in confined work areas.
Pilot-Linked Controls for Precise Operation
The ZT688 uses pilot-linked controls to provide responsive operation of the loader and backhoe working equipment. The control layout helps operators make smoother and more precise attachment movements, particularly during repeated loading, digging and positioning tasks.
Integrated High-Strength Frame for Stable Operation
The integral frame uses a reinforced box-type structure to improve overall machine stability and withstand repeated loading and excavation cycles, supporting consistent performance on demanding jobsites.
Specifications
| Overall Dimensions & Weight | Operating Weight | kg | 10730 |
| Transport Dimensions (L × W × H) | mm | 6760 × 2543 × 3990 | |
| Wheelbase | mm | 2293 | |
| Overall Height (Excavation Arm Folded) | mm | 3990 | |
| Wheel Tread | mm | 2050 | |
| Loader System | Bucket Capacity | m³ | 1.6 |
| Breakout Force | kN | 47 | |
| Loading Lift Capacity | kg | 3000 | |
| Bucket Dump Height | mm | 2850 | |
| Bucket Dump Reach | mm | 1006 | |
| Backhoe System | Backhoe Bucket Capacity | m³ | 0.3 |
| Max. Digging Depth | mm | 4220 (Extension Arm) | |
| Excavator Bucket Swing Angle | ° | 180 | |
| Max. Digging Force | kN | 50 | |
| Engine | Engine Model | — | Cummins SO14737 4BTA3.9-C110-II |
| Engine Type | — | Inline, Direct Injection, Four-Stroke, Injection Combustion Chamber | |
| Number of Cylinders × Bore × Stroke | — | 4 × 102 × 120 mm | |
| Rated Power | kW | 82 | |
| Rated Speed | rpm | 2200 | |
| Min. Specific Fuel Consumption | g/kW·h | ≤224 | |
| Max. Torque | N·m | ≥460 | |
| Displacement | L | 3.9 | |
| Steering System | Steering Device Model | — | BZZ-250 |
| Steering Angle | ° | ±35 | |
| Min. Turning Radius | mm | 6152 | |
| System Pressure | MPa | 14 | |
| Axles | Axle Manufacturer | — | Carraro Axle Factory |
| Front Axle Model | — | 26.32-1900 Front | |
| Rear Axle Model | — | 26.43M 1900-Rear | |
| Final Reduction Type | — | Single-Stage Final Reduction | |
| Rated Axle Load | t | Front 25 / Rear 18.75 | |
| Transmission System – Torque Converter | Torque Converter Model | — | YJ315 |
| Type | — | Single-Stage, Three-Element | |
| Max. Efficiency | % | 84.4 | |
| Inlet Pressure | MPa | 0.4–0.65 | |
| Outlet Pressure | MPa | 2 | |
| Cooling Method | — | Oil-Cooling Pressure Circulation | |
| Transmission System – Gearbox | Type | — | Mechanically Operated Hydraulic Synchronized Shift |
| Model | — | ZL30Y | |
| Gears | — | 4 Forward / 4 Reverse | |
| Max. Travel Speed | km/h | 38 | |
| Tires | Tire Size | — | 16.9-28 |
| Front Tire Pressure | MPa | 0.35 | |
| Rear Tire Pressure | MPa | 0.35 | |
| Brake System | Service Brake | — | Built-In Wet Brake |
| Self-Adjustment | — | Yes | |
| Self-Balancing | — | Yes | |
| Parking / Emergency Brake | — | Applied by Operating Force | |
| Parking Brake Release | — | Released by Manual Operating Force | |
| Hydraulic System | Working Pump Displacement | mL/r | 80 (Plunger Pump) |
| Working Pump Pressure | MPa | 20 | |
| Steering Gear Model | — | BZZ-250 | |
| Hydraulic Oil Tank Capacity | L | 130 | |
| Diesel Fuel Tank Capacity | L | 130 |
*NOTE: Specifications and configurations are subject to change due to continuous product upgrades and improvements without prior notice. All information is for reference only, and some features are optional. Please contact our international sales team for confirmation. Final specifications and configurations shall be subject to the official contract signed by both parties.
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