Kinshofer Announces New Heavy-Duty Clamshell Buckets For Excavators

Aug 25, 2021 - 4 years ago

For 50 years, Kinshofer GmbH has been a prominent manufacturer of high-quality attachments for truck-mounted cranes and it is now on the way to be one of the leading excavator attachment producers worldwide, too.

Kinshofer Announces New Heavy-Duty Clamshell Buckets For Excavators — Down to the last detail designed for Heavy Duty: The large HPXdrive of the C40HPX works with four helix threads on two opposing pistons. The Re-Handling Clamshell Bucket is ideal for excavators with an operating weight of up to 40 tons – available with open or closed shells.

In the last two decades, Kinshofer has become more and more interested in the re-handling business, producing large orange peel grabs (P-Series) for excavators with an operating weight of up to 120 tonnes, and re-handling clamshell buckets (C-Series) for excavators and carriers with an operating weight from 18 tonnes of up to 100 tonnes. Now Kinshofer proudly presents a new re-handling clamshell bucket for excavators with 40 tonnes operating weight – with shells moved by Kinshofer’s revolutionary HPXdrive.

If you want to handle bulk material on industrial or harbor sites in large amounts, it highly depends on the kind of “mass” you want to grab when choosing the right attachment for the job. Wherever giant cranes, pneumatic vacuum elevators (grain blowers) or conveyors are not available or possible, the classical grabbing devices will always be the first choice. Attached to an excavator, their mobility makes them extra attractive.

The sturdy Kinshofer re-handling clamshell buckets of the C-VHD-series have been developed especially for the loading and unloading of bulk materials in large amounts. They feature high volume, torsion-resistant shells and, thanks to the integrated 360° rotation, the grab can be positioned precisely. Bearing points have been equipped with specially-coated bushings and hardened pins. For delicate cargo like grain, there is also the option of closed shells. The shells of the C-VHD-series are driven by vertical hydraulic cylinders with piston rod protection.

Looking at the C40HPX, you will not find any hydraulic cylinder at all. This re-handling clamshell bucket is driven by the revolutionary HPXdrive: extra compact, extra-long lifetime and just an absolute minimum of maintenance needed. In contrast to conventional cylinder grabs, with the HPXdrive for carriers up to 40 tonnes, the torque is generated by two pistons, which run opposed and have four helix threads. The force is delivered to two shafts, on which the shells are mounted. These advantages of the HPXdrive- technology provide an extended service life and higher efficiency.

Thanks to its excellent digging characteristics, resulting from a high and constant closing force, the C40HPX is ideal even for difficult or under-water tasks.

An alternative to the clamshell buckets is the Kinshofer orange peel grab P-series. Sizes range from the smallest P22V for excavators from 16 tons operating weight up to the huge P120VHD with a staggering volume of 3,500 liters in the largest variant. Different shell designs – narrow or wide, half or fully closing tines – allow matching the grab to the task. These heavy duty, sturdy grabs are often used to handle scrap, waste or rocks. As the C-series, the orange peel grabs are equipped with a robust 360° rotation. Accurate fittings eliminate tine distortion, and the end stops for closing and opening are especially solid. Bolts are reinforced and have a large bearing surface. The hydraulic cylinders that operate the arms are protected by replaceable piston rod protections.

Kinshofer sticks strictly to innovation and quality. Thomas Friedrich, President & CEO of the Kinshofer Group, says: “Kinshofer continues its strategy to provide the industry with a ‘one-stop-shop’ solution of outstandingly engineered products to increase efficiency and, more importantly, profitability of our customers.”

Source: Kinshofer