Compact Bucket Wheel Excavator SRs(H) 1050

The compact bucket wheel excavator SRs 1050 (H) was newly developed by TAKRAF GmbH. It comprises state-of-the-art technology.

The excavator superstructure can be levelled in the horizontal plane. This enables operations on benches with 11% slope and hence the selective mining of thin interbeds of coal and the removal of interburden.
The SRs(H) 1050 is the largest compact excavator worldwide with boom levelling function.

The comprehensive design of the SRs(H) 1050 combines numerous innovative technical solutions: 

• Innovative wheel boom design featuring a combination of full-web and framework structures. This design enhances the torsional stiffness of the structure and minimizes its responsiveness against oscillations.
• Bucket wheel boom hoisting system with two hydraulic hoisting cylinders. This type of hoisting system was installed with TAKRAF compact excavators for the first time.
• New type of gear rim consisting of several segments with internal toothing ensuring easy replacement of individual segments.
• New type of cable routing between undercarriage and superstructure via two independent pivots ensuring a slewing range of 360°.
• Optimized hydraulic superstructure levelling device.
• High block digging efficiency of about 0.8. Thanks to a short double crawler travel gear of extremely compact design and a very long wheel boom, the machine can advance more than 10 m per horizontal slice. Hence the block digging efficiency of the SRs (H)1050 compares to that of giant type bucket wheel excavators even though its service weight is much smaller.
• A large number of lifetime lubricated components and hardened surfaces of gearings, ball races, shackles and track wheels enhances the service lives of crucial components and minimizes the scope of maintenance to be provided by the customer.

Those technical and operational advantages make the compact excavator SRs 1050(H) the “first choice product” on the world market!

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