Used Tandem

What is a tandem on a grader?

The tandem refers to the rear propulsion unit of a grader. It allows simultaneous driving of the rear wheels to ensure excellent traction, with perfectly synchronized operation of all four driven wheels, which is especially important for finishing work where advance precision is crucial.

Working continuously during each hour of machine use, the propulsion group is one of the most heavily stressed components of the grader and thus highly exposed to mechanical wear.

Why is the tandem so critical on a grader?

Unlike an excavator or loader, where propulsion relies on independent hydraulic motors, the grader mechanically synchronizes its rear wheels through the tandem. Failure of this component directly affects grading accuracy, the machine's overall traction, and in severe cases, can immobilize the equipment on site.

Grader tandem vs. tandem roller: do not confuse

This term refers to two very different realities in the used earthmoving equipment market. The grader tandem discussed on this page is a spare part: the rear propulsion unit fitted on a grader. On the other hand, the tandem roller is a complete machine, a compactor equipped with two vibrating drums at the front and rear, used for compacting soil and asphalt, unlike a single-drum compactor which has only one drum.

The leading brands in the tandem roller market are Bomag, Dynapac, Hamm, and Caterpillar. If you are looking for a complete machine rather than a spare part, please visit our used tandem roller page.

Used compactor, roller, single-drum or tandem: identify your needs

If you are searching for a used compactor, this term covers several types of rollers. The single-drum compactor, equipped with one vibrating drum at the front and pneumatic wheels at the rear, is suited for earthmoving and compacting large surfaces. The tandem compactor, however, has two vibrating drums, front and rear, making it particularly suitable for road asphalt work and pavement finishing.

For a used Hamm compactor or other brands, our catalog includes both complete machines and associated spare parts: hydraulic pumps, vibration motors, and grader tandems for machines equipped with them.

Price of a used grader tandem

The price of a used tandem varies greatly depending on the brand, grader model, and the overall condition of the part. A complete tandem, obtained from dismantling a whole machine, offers a significant cost-effective alternative to a new part while guaranteeing comparable performance through technical inspection before resale.

What is the price of a used grader tandem?

The price mainly depends on the grader model concerned and the level of wear on the propulsion group. A part coming from a lightly used machine is generally more affordable than a tandem that has accumulated many hours of finishing work. To receive an accurate quote, please provide the exact brand and model of your grader to our technical team.

Signs that a grader tandem needs inspection

Several symptoms should raise concern before more serious failure. Reduced traction on the rear wheels, unusual noises from the propulsion group, or imperfect synchronization between the rear wheels during finishing work are warning signs to watch out for. An oil leak at the tandem usually indicates deterioration of internal seals, which should be addressed promptly to prevent costlier mechanical breakdowns.

Our range of grader tandems for all brands

Codimatra offers a dedicated, daily updated list of tandems so that every professional can find the exact part matching their machine. Our dismantling activity covers the main grader brands on the earthmoving market, including Caterpillar, Volvo, and Komatsu.

To verify compatibility with your machine, send us the brand, model, and serial number of your grader. Our technicians analyze this information to confirm the exact match of the part before any purchase offer.

Used earthmoving equipment: beyond tandems, our full offer

Beyond grader tandems and compactors, Codimatra offers a wide range of used earthmoving equipment to meet all professional site needs: excavators, loaders, dump trucks, graders, and compactors, across all brands. Our systematic dismantling process allows us to offer both complete machines and spare parts from this same inventory, ensuring full traceability on every component.