By DJJ Equipment

2.4K
1.6K

What is a wheel loader? Uses, parts, types and how it compares

A wheel loader is a rubber-tyred machine with a large bucket on the front, built to scoop, lift, carry and dump loose material such as soil, gravel, sand, mulch and grain. Most wheel loaders steer through a pivot in the middle of the frame, which lets them turn tightly while staying stable on four large wheels. In Australia you'll also hear it called a front end loader or a bucket loader.

What does a wheel loader do?

A wheel loader moves loose material over short distances and loads it into trucks, hoppers and stockpiles. The typical cycle is simple: fill the bucket from a pile, reverse, turn, drive to the truck, lift, dump and repeat.

  • Loading trucks, trailers and hoppers from a stockpile
  • Building and turning stockpiles of gravel, sand, mulch, compost or grain
  • Carrying material around a yard, farm or site
  • Spreading fill, levelling ground and clearing debris
  • Lifting pallets, bales or pipe with forks or a grapple in place of the bucket

In Australia, wheel loaders work on farms and hobby properties, in landscape and building supply yards, on civil and construction sites, at waste and recycling depots and in quarries. Each of those jobs asks something different of the machine, from bucket size to tyre tread, which is why how wheel loaders are used across construction, farming and waste shapes the model that makes sense.

How does a wheel loader work?

A wheel loader works by combining a diesel engine, an articulated frame and a hydraulic system that lifts and tilts the bucket.

Articulated steering

Most wheel loaders have a front frame and a rear frame joined by a pivot in the middle. Steering cylinders bend the machine at that joint, so the front frame, arms and bucket swing together while the rear frame carries the engine and counterweight. You get a tight turning circle without giving up the stability of four big wheels. The trade-off is that a loader is least stable when it's turned hard with a full bucket, which is why spec sheets quote a tipping load at full turn.

Lift and tilt hydraulics

Two sets of hydraulic cylinders do the work at the front. Lift cylinders raise and lower the arms, and tilt cylinders roll the bucket back to hold a load or forward to dump it. The operator controls both from the cab with a joystick or levers.

Z-bar or parallel lift linkage

The linkage between the tilt cylinder and the bucket comes in two main designs. A Z-bar linkage uses a single bell crank in the middle of the arms and gives strong breakout force, which suits digging into hard piles and heavy earthmoving. A parallel lift linkage keeps the bucket or forks level as the arms rise, which suits pallets, bales and other loads that mustn't tip.

Parallel lift also gives a clearer view of the forks, but usually less breakout force and more pivot points to grease. If most of your work is pallets and bales, ask about the linkage before you compare horsepower.

Main parts of a wheel loader

These are the parts named on most wheel loader spec sheets and what each one does.

PartWhat it does
Front and rear framesCarry the loader arms and the engine, joined by the centre articulation joint
Engine and transmissionThe diesel engine drives the wheels through the transmission and powers the hydraulic pump
Loader arms (boom)Lift the bucket or attachment; their length sets the dump height and reach
Bucket and quick couplerThe bucket holds the material; a quick coupler lets you swap to forks, a grapple or another bucket
Hydraulic cylindersLift the arms, tilt the bucket and steer the machine
CabHolds the controls and protects the operator; many loaders, including the LGMA LM920, have a ROPS and FOPS certified cab
CounterweightSits at the rear to balance the load in the bucket
TyresLarge pneumatic tyres, with tread chosen for the ground, from traction tread for soil to deep rock tread for quarries

Tyres and bucket edges are the parts that wear fastest on most sites, so check how easily they can be sourced before you buy. DJJ Equipment keeps commonly needed wheel loader parts at its Sydney, Brisbane and Perth branches.

Types and sizes of wheel loaders

Wheel loaders are usually grouped as compact, mid-size and large, by operating weight and bucket size.

TypeTypical workWhat to expect
Compact wheel loaderSmall farms, landscaping, building supply yards, tight sitesEasy to transport and light on the ground, with a lower dump height
Mid-size wheel loaderTruck loading, civil works, larger farms, recyclingThe all-rounder, with a higher dump height and bigger buckets
Large wheel loaderQuarries, mines and portsLoads haul trucks and rail wagons, and needs heavy haulage to move between sites

Size is better judged by numbers than labels, because each brand draws the lines differently. DJJ sells the LGMA LM range, which runs from 3.8 t to 8.2 t operating weight.

ModelOperating weightRated loadBucketDump heightEngine
LM9203.8 t1.6 t0.8 m³3,200 mm42 kW
LM9303.8 t1.6 t0.8 m³3,200 mm65 kW
LM9385.2 t2.0 t1.0 m³3,600 mm76 kW
LM9406.5 t2.5 t1.3 m³3,800 mm85 kW
LM9468.2 t2.8 t1.5 m³3,800 mm92 kW

That puts the range at the compact and small mid-size end: machines for farms, yards and construction sites rather than quarry faces. You can compare the full specifications across our wheel loaders for sale.

Wheel loader vs other loaders

A wheel loader is the largest and fastest of the common loader types, built for loading and carrying rather than digging or reaching high.

MachineHow it differs from a wheel loaderBetter choice when
Skid steer loaderMuch smaller, turns by skidding its wheels, with the arms beside the operatorSpace is tight and you swap attachments often
Compact track loaderRuns on rubber tracks, slower, with lower ground pressureThe ground is soft, wet or uneven
Backhoe loaderFront bucket plus a digging arm at the rearThe job needs trenching as well as loading
TelehandlerTelescopic boom for reach and height, with forks or a bucketLoads must go high or over obstacles
BulldozerTracks and a blade that pushes material instead of lifting itThe work is pushing, ripping and rough grading

Is a front end loader the same as a wheel loader?

Mostly, yes. In Australia, front end loader and wheel loader usually mean the same machine, and other names include bucket loader and payloader. Front end loader can also mean a loader attachment fitted to a farm tractor. A tractor loader handles light farm work, while a dedicated wheel loader lifts more, dumps higher and is built for all-day loading.

What are the three types of loaders?

The three loaders most people mean are wheel loaders, skid steer loaders and track loaders, with backhoe loaders often added as a fourth. If space is the deciding factor, it's worth knowing what a skid steer is and where it fits before you choose.

How to read a wheel loader spec sheet

A wheel loader spec sheet tells you how much the machine can safely carry, how high it can dump and how hard it can dig. These five figures matter most:

  • Operating weight: the machine ready to work, with fluids and an operator. It affects traction, stability and the truck you need to move it.
  • Rated load: the load the loader is designed to carry. Under ISO 14397-1, a wheel loader's rated operating capacity is 50% of its full-turn static tipping load.
  • Tipping load: the weight in the bucket that lifts the rear wheels off the ground. The full-turn figure is lower than the straight-ahead figure, because the bucket swings out past the wheels when the frame articulates.
  • Breakout force: the upward force at the bucket's cutting edge, which decides how easily the bucket fills from a hard pile.
  • Dump height and bucket capacity: whether the loader clears the side of your truck or hopper, and how much each pass carries.

Take the LGMA LM938 wheel loader as an example. Its rated load is 2.0 t and its bucket holds 1.0 m³. Loose gravel weighs roughly 1.6 t per cubic metre, so a full bucket of gravel sits inside the rating. A heaped bucket of wet clay can come close to it, so match the bucket to the material, not just to the machine.

Do you need a licence to operate a wheel loader in Australia?

No High Risk Work Licence class covers wheel loaders, so there's no loader licence card like the LF forklift licence. That doesn't mean anyone can drive one. Under WHS law, the business must make sure every operator is trained and competent for the machine and the site, and principal contractors commonly ask for a recognised training unit or a verification of competency before an operator starts.

A wheel loader that travels on public roads also needs the right registration. In NSW, wheel loaders can be conditionally registered, and other states run their own schemes, so check with your state transport authority before driving one on the road.

On site, the basics apply to every loader: wear the seatbelt, carry the bucket low, slow down on slopes and when turning with a load, and keep people clear of the turning and reversing area. The operator manual and the operator's training cover the rest.

How to choose the right wheel loader

Choose a wheel loader by the work it does most days, not by its peak figures.

  • Material and bucket: light material such as mulch or grain suits a bigger bucket, while heavy material such as wet soil or rock needs more rated load for the same bucket.
  • Dump height: measure the side of your highest truck, trailer or hopper and allow clearance above it.
  • Ground and travel: hard yards suit standard tread, while soft paddocks and wet sites need the right tyres and enough weight for traction.
  • Linkage and coupler: parallel lift and a quick coupler make sense if forks or a grapple will be on the machine as often as the bucket.
  • Transport: a compact loader moves on a plant trailer, while a heavier one needs a bigger truck.
  • Parts and service: check who stocks filters, tyres and wear parts near you, and who services the machine.

Forks, grapples and 4-in-1 buckets each change what a loader can do, so the right wheel loader attachments are worth deciding before the machine itself.

A wheel loader is the right machine when your work is loading and carrying loose material across a yard, farm or site, while a skid steer or a telehandler fits better when space or height matters more. To narrow it down, call DJJ on 1800 355 388 with the material you move, the height you dump to, the ground you work on and the attachments you need. Our team will match the size and linkage to the job.

Related News

COMPARE

Figures come from Hangcha brochures and cover a whole series. Confirm final suitability with DJJ before ordering.

Call us1800 355 388
Call