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A backhoe, also called a rear actor or back actor, is a piece of excavating equipment or digger consisting of a digging bucket on the end of a two-part articulated arm. They are typically mounted on the back of a tractor or front loader. The section of the arm closest to the vehicle is known as the boom, and the section which carries the bucket is known as the dipper or dipper-stick (the terms "boom" and "dipper" having been used previously on steam shovels). The boom is attached to the vehicle through a pivot known as the king-post, which allows the arm to slew left and right, usually through a total of around 200 degrees. Modern backhoes are powered by hydraulycs.
A backhoe loader is a tractor-like vehicle with an arm and bucket mounted on the back and a front loader mounted on the front. and simply a Backhoe or a Tractor Loader Backhoe (TLB) in North America. In North American terms, a Backhoe includes both a front bucket and a rear hoe, on a chassis originally derived from farm tractors. A dedicated hoe on its own chassis is more properly referred to as an excavator.
Backhoes can be designed and manufactured from the start as such, or can be the result of a farm tractor equipped with a Front End Loader (FEL) and rear hoe. Though similar looking, the designed backhoes are much stronger, with the farm variation more suitable for light work. The farm variation also requires that the operator switch seats from sitting in front of the backhoe controls to the tractor seat in order to reposition the equipment while digging, and this often slows down the digging process.
Spesifikasi ProdukMain Loading Technical Specification 1 Rated load 1700Kg 2 Operating weight 7000Kg 3 Max lifting capability >2500Kg 4 Rated load bucket capacity 1.0m3 5 Max. load breakout force >40kN 6 Max. dump clearance 2611mm 7 Max. Dump reach 726mm 8 Dump angle at any position ≥43.5° 9 Min. turning radius (1) Outside of bucket 5280mm for 2WD 5670mm for 4WD (2) Center of front wheel 3795mm for 2WD 4300mm for 4WD 10 Lifting time of loading bucket ≤5.1sec. 11 Lowering time of loading bucket ≤4.9sec. 12 Dumping time ≤0.9sec. 13 Traveling speed,4 forward and 4 reverse (1) Ⅰ gear forward 5.8Km/h (2) Ⅱ gear forward 10.5Km/h (3) Ⅲ gear forward 20.1Km/h (4) Ⅳ gear forward 40.2Km/h (1) Ⅰ gear reverse 7.0Km/h (2) Ⅱ gear reverse 12.6Km/h (3) Ⅲ gear reverse 24.3Km/h (4) Ⅳ gear reverse 48.6Km/h Main Digging Technical Specification 1 Rated digging bucket capacity 0.3m3 2 Max. digging depth 4338mm 3 Max. digging force >50±10%kN 4 Max. digging radius 5481mm 5 Max. dumping height 3737mm Diesel engine 1 Model Cummins 4BT4.5-C99 2 Type Direct injection. Turbocharged. Water cooling 3 Rated output 74kW 4 Total exhaust of cylinder 4.5L 5 Inter-bore of cylinder/stroke 102/138mm 6 Voltage of starting motor 12V 7 Rated speed 2200r/min 8 Max. Torque 414N.M 9 Starting type Electric 10 Min. specific fuel consumption 225g/Kw.h Transmission System 1. Torque Converter 1 Model CARRARO 2 Cooling type Pressure oil circulating 2. Transmission case 1 Model CARRARO 2 Type Synchromesh mechanical shift 3 Gear shift position 4 Forward and 4 reverse gears 3. Axle and Tire 1 Model CARRARO 2 Type of main reducer spiral bevel gear, single stage 3 Type of final reducer Single stage planetary 4 Max. steering angle 55° 5 Tire type 4WD fore tire12-16.5NHS-10PR 2WD fore tire11L-16F3-12PR Rear tire 19.5L-24R4-12PR Working Device Hydraulic System 1 Model of oil pump P257A467PRZA12-6 2 System pressure 215kgf/cm2 3 Model of priority valve WALVOIL SD16/2、SD16/6 Steering System 1 Type Fore wheel Steering 2 Model of steering pump P257A467PRZA12-6 3 Model of steering gear 150-1219 4 System pressure 140kgf/cm2 Oil Capacity 1 Fuel(diesel) 151L 2 Engine lubricating oil 11L 3 Oil for converter and gear box 18.5L 4 Oil for hydraulic system 110L 5 Oil for driving axles(F/R) 7.6+17L
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