E Series - Sleipner


Sleipner E Series: Get rolling in minutes

What is the best way to transport an excavator? To enjoy the full wheeled advantage of dollies, a quick and easy set up and unmounting are vital. Sleipner E Series dollies are designed to get you rolling in no time. In fact, it takes less than two minutes to drive the tracks of your excavator onto a Sleipner E Series dolly. After that, you simply turn the upper carriage around and place the bucket on the bed of the truck. Then, by lifting the tracks up by pushing the bucket down, you are good to go. Simple, safe and effective!  

The wheeled advantage


Replace three hours of tramming with a half an hour of smooth riding


Convert tramming hours into excavating hours


Bumpy tramming is stressful for the undercarriage of excavators


Less maintenance with fewer spare parts, lower fuel consumption

Why choose the Sleipner E Series?

Tracks are good for excavating, but not so good for moving. A typical excavator spends 7 to 30% of its working days tramming – time that can be reduced up to 85% by using Sleipner E Series dollies. Designed for safe and fast set up and unloading, Sleipner E Series dollies are a cost-effective, time-saving alternative to lowbed trailers. Get on wheels, hitch a ride on a truck and get there faster, more smoothly and more safelyand also with less undercarriage damage and fewer greenhouse emissions.  


Sleipner E Series dollies are designed for excavators weighing 23 to 570 metric tonnes. With their quick and easy implementation, you can start to enjoy the wheeled advantage within days! There are several models available to match the weight and dimensions of your machinery. 


Instead of three hours traveling on tracks, your excavator can be transported in half an hour on Sleipner E Series dollies. The two and half hours you save can then be used for productive work, allowing the loading to be planned more efficiently. The improved utilisation and availability rates can increase your excavator’s productivity by 12 to 20%.  


Undercarriage parts and maintenance can account for up to one-third of an excavator’s life cycle costs (LCC). With Sleipner E Series dollies, transporting the excavator no longer stresses the undercarriage. Depending on the operating conditions and the size of the excavator, this can double or even triple the undercarriage’s service life. This translates to LCC savings of 10 to 18%.  


Excavators require regular service and maintenance, and the best place to work on excavators – in terms of access to the right tools and spares, as well as a safer working environment – is a designated workshop rather than in the field. The safe and easy relocation of excavators makes it economical to transport them to a workshop for maintenance, which is at least 20% faster than on-site repairs. This reduces excavator downtime and maintenance hours.  


Wheels under excavators bring flexibility to your operations. Heavy machinery can be effortlessly moved and relocated whenever needed, even in the middle of a shift. For example, you can take advantage of blasting breaks and fly-in fly-out (FIFO) roster changes by performing maintenance work in the workshop. If an excavator breaks down at the bottom of a pit while loading ore, just borrow a replacement excavator from an overburden area. Your valuable ore digging can then continue as planned with minimal truck waiting times.  


All Sleipner E Series operations are done mechanically with no need for human interaction. Trained truck and excavator operators can stay inside their cabs in constant radio contact. The transport can be interrupted at any time by lowering the excavator tracks, which are only around 40 cm (1.3 feet) off the ground. The maximum transportation speed is up to 15 km/h (9 mph). An automatic parking brake mechanism keeps Sleipner E Series dollies in place when not in use. These safety features minimise work-related accidents.  


Tramming is stressful not only for machinery but also for personnel. The vibrations can cause back problems, and shaky tramming on undulating terrain exposes the driver to other injuries as well. Furthermore, extended periods spent in the cab just to move the machine can be frustrating. When using Sleipner wheeled transportation, personnel usually experience an improvement in their quality of life, as well as fewer sick days.  

Calculate your Sleipner E Series benefits

Tracks are good for excavating, but not so good for moving. A typical excavator spends 7 to 30% of its working days tramming – time that can be reduced up to 85% by using Sleipner E Series dollies. Designed for safe and fast set up and unloading, Sleipner E Series dollies are a cost-effective, time-saving alternative to lowbed trailers. Get on wheels, hitch a ride on a truck and get there faster, more smoothly and more safely – and also with less undercarriage damage and fewer greenhouse emissions.

Filter with weight

Notice: In order to ensure optimum equipment compatibility and performance capabilities, every truck and excavator combination must be checked on a case-by-case basis. Site conditions are also required for the preliminary analysis.  


Yes, you can safely use the same dollies for multiple excavators as long as the track width and pattern are identical and you do not exceed the operational weight.
The maximum permitted speed is 15 km/h (9 mph) in good conditions. When cornering, going downhill and operating in narrow spots, for example, the speed should be reduced according to the conditions.
The excavator operator is always able to interrupt the transport, first by lowering the tracks until they touch the road and then lowering them to the maximum by lifting up the boom.
Typically, tyres on the Sleipner E Series are used for only a few hundred kilometres per year, not 24/7 like mining truck tyres. Typically, the tyres are trailing (idling), meaning there are no steering forces that can cause wear and tear. The typical tyre age is more than 10 years except in conditions with very high (8–10) UV radiation, in which tyre life can be 5 years.
It takes only a couple of minutes to set up once the dollies are in place.
Yes, on-site commissioning is always needed. The purpose of commissioning is to ensure that all the system components are designed, installed, tested, operated and maintained according to the design objectives or specifications. The supplier, dealer and/or training specialists are in charge of the commissioning.
In normal conditions, the retarding capacity of the truck is enough to carry an excavator safely downhill. The retarding capacity is always verified according to the actual road grades and the truck manufacturer’s retarding capacity charts.
No. Sleipner E Series dollies do not create any additional loads that could damage the excavator’s steel structures, swing ring or other components. During transport, the excavator supports itself with the same hydraulic cylinders that are used for digging. All forces on the excavator are generated by the hydraulic system. The hydraulic system has a main pressure relief valve, while each cylinder circuit has its own secondary pressure relief valve. These valves are set according to the excavator’s design parameters to protect it from overloading. During transport with Sleipner dollies, the cylinder pressure levels are below these design parameters.
Absolutely not. The excavator cannot fall abruptly from Sleipner dollies. The excavator tracks are supported on the Sleipner dolly cradles, which are only around 40 cm (15 inches) off the ground during transport. If the tracks were somehow to fall off the cradles, the tracks would fall off slowly, touching the ground smoothly, and the transport would be interrupted. This kind of “abrupt fall off” is not possible if the Sleipner dollies are used according to the instructions and operation procedures.
The Sleipner E Series can be used in the same weather conditions as normal mining trucks. Sleipner dollies are used in a wide range of conditions, from icy artic sub-zero temperatures to tropical rainforest climates.
To guarantee safe and faultless products and operations, Sleipner manufacturing processes follow a Quality Management System. Inspections and testing of each Sleipner unit are performed and documented according to the Quality Management System.
No. The forces during normal digging are much higher than during Sleipner transport.
Each wheel is equipped with an automatic parking brake that keeps the axles in place when not used. The parking brake is fully mechanical and has a fail-safe system.
Yes. The Duratray supports Sleipner dollies.
This question has not got a definitive answer yet. The first dollies put to work in 1996 are still in use today!
Regular maintenance is broken down into weekly, monthly and yearly checks and actions. Basically, all critical and wearing parts require weekly checks, bush bearings require monthly greasing, and the hub oil requires a yearly change.
Many CAT, Hitachi, Volvo, John Deere and Komatsu dealers around the world promote and sell Sleipner dollies as a solution for their customers.
Yes, it is safe to use. Operators need to follow trained safe working procedures. A detailed risk assessment is available. Sleipner dollies and operating procedures have been audited and approved by world-class mining companies, including Vale, Rio Tinto and BHP.
Yes, it is. Sleipner products are designed to improve sustainability as a whole. Using Sleipner dollies and trailers decreases fuel consumption and emissions during transportation.

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