Blum TANDEM Single-Extension Side Stabilisation Set – ZST650TT

Help wider drawers run smoothly and reduce racking, the unwanted side-to-side movement that can occur during opening and closing. The Blum ZST.650TT side stabilisation set adds lateral stability to compatible drawer runners, particularly on wide pull-outs with short nominal runner lengths. Its components are easy to cut down to the required installation length.

This version is specified for TANDEM 550H and 551H single-extension BLUMOTION runners, with nominal lengths up to 650mm. It is a TANDEM stabilisation set, not a TANDEMBOX accessory. Match the exact runner reference and nominal length before ordering.

Specifications

• Blum reference: ZST.650TT
• Hart Wholesale SKU: ZST650TT
• Application: TANDEM single-extension BLUMOTION 550H/551H
• Nominal runner length: up to 650mm
• Suitable for cabinet widths up to 1400mm
• Colour: RAL 7037 dust grey
• Blum lists the stabilisation set material as nylon
• Components designed for cutting to size
• Not compatible with TIP-ON
• Blum lifetime guarantee

Smoother running on wider drawers

The stabiliser works alongside the drawer runners to control lateral movement and help a wider drawer move more evenly. It does not replace the runners or convert single extension to full extension. Use the TT version only for the specified single-extension application rather than treating all stabilisation sets as interchangeable.

Cutting and installation

The 650mm designation is the maximum nominal runner length, not the transverse linking-bar length. For this TT set, Blum specifies transverse cutting to internal cabinet width minus 222mm, with the longitudinal component dimension equal to nominal runner length plus 12mm. The components can be cut down easily; measure carefully and check the current assembly instructions and cabinet clearances before cutting or drilling.

Browse Blum TANDEM drawer runners and Blum drawer runner accessories for related fittings. Choose a system-specific stabiliser for full-extension TANDEM, TANDEMBOX or MOVENTO installations rather than substituting this set.

Frequently Asked Questions

What does this stabilisation set do?

It adds lateral stability to compatible drawer runners, helping wider drawers run smoothly and reducing racking or side-to-side movement.

Which runners does ZST650TT fit?

It is specified for TANDEM 550H/551H single-extension BLUMOTION runners, with nominal lengths up to 650mm.

Can I cut the components to length?

Yes. They are easy to cut down to the installation dimensions. Follow the system-specific cutting instructions and measure before cutting.

Is 650mm the cross-cabinet bar length?

No. It identifies the maximum nominal runner length. Cut the transverse and longitudinal components to suit the cabinet and runner installation.

Can I use it with TIP-ON?

No. Blum specifies that this set is not compatible with TIP-ON.

Is this a TANDEMBOX stabilisation set?

No. ZST.650TT is the TANDEM single-extension version. Match the exact Blum reference to the runner system.

Does it have a lifetime guarantee?

Yes. All Blum products supplied by Hart Wholesale have a lifetime guarantee.

Explore the complete Blum hardware range.