Hettich HSS 31: EN 1-3 Surface Mounted Door Closer with Slide Rail

Overview

The Hettich HSS 31 EN 1-3 is a surface-mounted door closer with a slide rail, designed for controlled, smooth door closing using a Rack and Pinion (Asymmetric) Mechanism. It is EN1154 certified, fire rated, and tested for 500,000 operating cycles, making it suitable for commercial, fire-rated, and high-traffic door applications.

What It Does

The closer manages door closing speed and latching through a mechanical rack-and-pinion system with a slide rail (rather than a linkage arm), giving a low-profile, sleek appearance while maintaining consistent, adjustable closing control across the full swing range.

• Closing speed: continuously adjustable from 180° to 0°
• Latching speed: continuously adjustable from approx. 10° to 0°
• Fixed back-check function to cushion the door before full opening
• EN1154 certified and fire rated for use on fire door assemblies
• Tested and certified for 500,000 open/close cycles

Who It Helps

This door closer is intended for:

• Architects and specifiers selecting EN1154-certified, fire-rated closers for commercial or institutional doors
• Facility managers upgrading door hardware on doors weighing 20-100 kg and 750-950 mm wide
• Fabricators and contractors needing a slide-rail closer with a discreet surface-mounted profile

Product Facts

Pricing and Availability

Pricing and stock are current at time of publication and may vary; confirm current price and availability on the product page before ordering.

Variant Options

Related slide-rail door closer variants available in this product family include:

• Door width: 750-950 mm, 750-1100 mm, 950-1400 mm
• Weight capacity: 20-80 kg, 20-100 kg, 20-120 kg, 60-120 kg

Buyers should match variant selection to actual door weight and width before ordering, since closer performance depends on correct sizing.

Buyer Questions This Page Should Answer

What door sizes is this closer rated for?

It is rated for doors 750-950 mm wide and weighing 20-100 kg (a related SKU covers 20-80 kg on the same width range).

Is it certified for fire doors?

Yes. It is EN1154 certified and fire rated, making it suitable for fire door assemblies where certified closer hardware is required.

How durable is it?

It is tested and certified for 500,000 open/close cycles.

What is included in the box?

One closer body, one slide rail, and one cover.

What material and finish does it have?

Cast aluminium body with a silver finish.

Can the closing speed be adjusted?

Yes. Closing speed is continuously adjustable across the full 180° to 0° swing, and latching speed is continuously adjustable from approximately 10° to 0°.

What is the warranty?

Hettich provides a 5-year warranty on this product.

How is it mounted?

It is a surface-mounted door closer that uses a slide rail track instead of a traditional arm linkage, giving a lower-profile appearance.

Proof or Trust Signals

• EN1154 certification for door closing devices
• Fire-rated for use on fire door assemblies
• 500,000-cycle durability testing and certification
• 5-year manufacturer warranty
• Sold under the Hettich brand through Hettich Fittings' official India online store

Resources and Next Steps

• View this product / enquire online
• Browse Hettich Fittings online store

Buyers unsure which variant matches their door specification should confirm exact door weight and width, then select the matching SKU or enquire online before purchase.