ABS plunger

ABS is a patented plunger with special design and cooling channel configuration that ensure an optimal cooling during the injection process.

It is produced using high strength hot work steel.

The plunger is fixed to its holder by our special bayonet locking design.

ABS plunger is provided with a frontal ring creating an optimal sealing between sleeve and plunger and a spring bush (back ring) specially designed for vacuum application.

ABS Plunger is available in 2 versions depending on casting process and application:

ABS-RS: Standard version with frontal and back ring.
ABS-BN: Bullet nose version with wide frontal ring and back ring.

HTS DIFFERENCE

INNOVATIVE TECHNOLOGY

Based on MFT™ and DED technologies we produce components with conformal cooling / flow design and mechanical properties of a forged tool steel block.

SUPERIOR PERFORMANCE

iTherm® components have a big impact on cooling and material flow, resulting in shorter cycle times, higher cast/moulded part quality and subsequentially also productivity.

SOLUTION ORIENTED

Years of experience and R&D of HTS Group companies, combined with leading OEM customer partnerships gives us knowledge and capacity to help you improve your productivity.

Advantages over conventional plunger

Assembly allows minor misalignment

In comparison with a conventional lock system between plunger and holder, the coupling is done using a special bayonet system. This one provides a small functional play between both holder and plunger, compensating for small misalignments.

Cycle time reduction

Compared with a conventionally made plunger, the cooling arrangement is optimized, resulting in more efficient and homogenous cooling and solidification of the biscuit.
Assembly and removal of the ring are straightforward and can be done directly on the machine, avoiding any waste of time.

Longer lifetime

The assembly of the ABS plunger with its holder has been specially designed: the holder itself rests against the inner surface of the plunger absorbing the total injection pressure and avoiding cracks and fatigue.
ABS plunger achieves a longer lifetime compared to copper made plungers because of less dilatation. Copper dilatation equals 17-6, while in the case of high strength hot work steel the expansion is up to 11-6.

PLUNGER COMPARISON

PARAMETERS

Dimensional range

Diameter 50 - 230 mm (2.00" - 9.00")

MATERIAL

ABS plungers are made using forged or rolled tool steel bars produced in EU.

ABS+ plungers are made using forged or rolled hot work tool steel bars with enhanced thermal conductivity, produced in EU.

Plunger rings

We manufacture a selection of plunger rings and spring bushes for ABS model plungers. Read more…

iTherm® conformal cooled shot blocks are cooling quicker and more equally across the working surface, shortening biscuit solidification time.

LOOKING FOR FASTER BISCUIT SOLIDIFICATION? →

Our innovative rod spray lubrication system which lubricates the sleeve across the whole length will prolong the sleeve and plunger lifetime.

DON'T FORGET ABOUT LUBRICATION →

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