中国徐工 ZL50GN 轮式装载机，前端装载机，紧凑型轮式装载机，用于建筑工程项目
Wheel Loader
A loader is a heavy equipment machine used in construction to move or load materials such as soil, rock, sand, demolition debris, etc. into or onto another type of machinery (such as a dump truck, conveyor belt, feed-hopper, or railroad car).
There are many types of loader, which, depending on design and application, are variously called a bucket loader, end loader, front loader, front-end loader, payloader, high lift, scoop, shovel dozer, skid-steer, skip loader, tractor loader or wheel loader.
A loader is a type of tractor, usually wheeled, sometimes on tracks, that has a front-mounted wide bucket connected to the end of two booms (arms) to scoop up loose material from the ground, such as dirt, sand or gravel, and move it from one place to another without pushing the material across the ground. A loader is commonly used to move a stockpiled material from ground level and deposit it into an awaiting dump truck or into an open trench excavation.
The loader assembly may be a removable attachment or permanently mounted. Often the bucket can be replaced with other devices or tools—for example, many can mount forks to lift heavy pallets or shipping containers, and a hydraulically opening "clamshell" bucket allows a loader to act as a light dozer or scraper. The bucket can also be augmented with devices like a bale grappler for handling large bales of hay or straw.
Loaders are used mainly for loading materials into trucks, laying pipe, clearing rubble, and digging. A loader is not the most efficient machine for digging as it cannot dig very deep below the level of its wheels, like a backhoe or an excavator can. The capacity of a loader bucket can be anywhere from 0.5 to 36 m³ depending upon the size of the machine and its application. The front loader's bucket capacity is generally much bigger than a bucket capacity of a backhoe loader.
Unlike most bulldozers, most loaders are wheeled and not tracked, although track loaders are common. They are successful where sharp-edged materials in construction debris would damage rubber wheels, or where the ground is soft and muddy. Wheels provide better mobility and speed and do not damage paved roads as much as tracks, but provide less traction.
In construction areas loaders are also used to transport building materials such as bricks, pipe, metal bars, and digging tools over short distances.
Specification
CDM816 Tier 2
RATED POWER:55kW/2400rpm
BUCKET CAPACITY:0.95 m³
RATED PAYLOAD:1600kg
OPERATING WEIGHT:5500kg
CDM818 Tier 2
RATED POWER:63kW/2400rpm
BUCKET CAPACITY:1.05 m³
RATED PAYLOAD:1800kg
OPERATING WEIGHT:5600kg
CDM820DA
RATED POWER:66.2kW/2200rpm
BUCKET CAPACITY:1.2m³
RATED PAYLOAD:2000kg
OPERATING WEIGHT:6400kg
CDM923N
RATED POWER:36.8kW12400rpm
BUCKET CAPACITY:0.55 m³
RATED PAYLOAD:1000kg
OPERATING WEIGHT:4170kg
CDM926N
RATED POWER:45kW12400rpm
BUCKET CAPACITY:0.75 m³
RATED PAYLOAD:1500kg
OPERATING WEIGHT:4520kg
Technical Specifications
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| FCS-CDM926 | FCS-CDM923 | FCS-CDM820DA | FCS-CDM818 | FCS-CDM816 | |
| Overall Height - Bucket Raised(mm) | 3922 | 4287 | 4076 | 4140 | 4140 |
| Bucket Pin Height at Max. Lift(mm) | 3213 | 3648 | 3136 | 3350 | 3350 |
| Dump Clearance at Max. Lift (45°)(mm) | 2500 | 3000 | 2350 | 2700 | 2700 |
| Reach at Max, Lift and 45° Dump(mm) | 987 | 840 | 1080 | 900 | 900 |
| Rack Back Angle at Cary(°) | 49 | 51 | 44 | 48 | 48 |
| Rack Back Angle at Ground(°) | 47 | 53 | 40 | 35 | 35 |
| Digging Depth(mm) | 25 | 20 | 30 | 44 | 44 |
| Rack Back Angle at Max. Lift(°) | 51 | 56 | 50 | 56 | 56 |
| Dump Angle at Max. Lift(°) | 40 | 40 | 45 | 44 | 44 |
| Carry Height(mm) | 400 | 400 | 400 | 400 | 400 |
| Ground Cearance(mm) | 230 | 270 | 585 | 310 | 310 |
| Center Line of Front Axle to Hitch(mm) | 850 | 895 | 690 | 690 | 690 |
| Wheel Base(mm) | 2178 | 2262 | 2037 | 2050 | 2050 |
| Center Line of Front Axle to Hitch(mm) | 5370 | 5520 | 6030 | 5700 | 5700 |
| Departure Angle(%) | 20 | 30 | 25 | 25 | 25 |
| Height to Top of Cab(mm) | 2600 | 2810 | 2350 | 2930 | 2930 |
| Overall Width over Bucket(mm) | 2100 | 1830 | 2060 | 1950 | 1950 |
| Min.Tuming Radius over Bucket(mm) | 4934 | 5565 | 4780 | 5100 | 5100 |
| Min. Turning Radius over Tires(mm) | 4580 | 5262 | 4328 | 4520 | 4520 |
| Steering Angle- Left/Right(°) | 35 | 32 | 35 | 35 | 35 |
| Width at Tread Center(mm) | 1479 | 1500 | 1500 | 1440 | 1440 |
| Overall Width over Tires(mm) | 1879 | 1835 | 1900 | 1840 | 1840 |