QS899V, Floor Spring – Heavy Duty – Up to 150kg – Hold Open

2026-04-12T11:07:02+02:00

Vendor: QS
Type: Floor Spring
Price: 4197.00

ABOUT THIS FLOOR SPRING

The QS899V Floor Spring – Hold Open (HO) is a heavy duty hydraulic floor mounted door closer designed to control the opening and closing of commercial entrance doors.

Floor springs are installed inside the floor beneath the door, providing a concealed and durable closing mechanism while allowing the door to operate smoothly.

Floor springs are commonly used on glass shopfront doors, aluminium entrance doors and commercial buildings where a traditional surface mounted door closer is not suitable.

The QS899V features adjustable spring strength, allowing the closer to be used on a wide range of door sizes and weights.

KEY FEATURES

Brand: QS Doorware

Model: QS899V

Function: Hold Open (HO)

Door Closer Type: Floor Spring

Mechanism: Hydraulic Floor Mounted Door Closer

Operation: Double Action (Door Opens Both Directions)

Adjustable Spring Strength: Yes

Maximum Door Width: 1100mm

Maximum Door Weight: 150kg

Cover Plate: Stainless Steel

Finish: Stainless Steel

Fire Rated: EN1154 Compliant

COMPATIBLE OPTIONS

This floor spring forms part of the QS floor spring range and is available in different configurations depending on the door installation.

Available options include:

• Non hold open versions where the door automatically returns to the closed position
• 90° hold open versions where the door can remain open at approximately 90°
• Different fixing kits depending on the door installation

If you are unsure which version is required, please contact The Stickman Store and we will gladly assist.

HOLD OPEN OR NON HOLD OPEN

This product is the Hold Open (HO) version.

Hold Open (HO)

Allows the door to remain open at approximately 90°.

This is commonly used in:

• Retail shopfront doors
• Shopping centres
• Public entrances

Non Hold Open (NHO)

The door always returns to the closed position automatically.

This option is typically used for:

• Office entrances
• Security doors
• Controlled access doors

SUITABLE FOR

• Glass shopfront doors
• Aluminium entrance doors
• Commercial buildings
• Retail stores
• Office entrances

Door Materials

• Frameless glass doors
• Aluminium doors
• Timber doors

RELATED PRODUCTS & ACCESSORIES

To complete your door installation, you may also require the following:

• Pivot Sets → https://thestickman.co.za/collections/pivot-set-and-accessories
• Pivot Locks → https://thestickman.co.za/search?q=pivot+lock
• Cylinders → https://thestickman.co.za/search?q=cylinder
• Pull Handles → https://thestickman.co.za/search?q=pull+handle

Floor springs work together with pivot hardware and locking systems to ensure correct door operation and long-term performance.

HOW TO CHOOSE THE CORRECT FLOOR SPRING

Floor springs are selected according to door width and door weight.

Typical guideline:

Doors up to 100kg → QS860

Medium commercial doors → QS880/3

Heavy commercial doors → QS880/4

Very heavy doors → QS895/5

Adjustable strength floor spring → QS899V

The QS899V adjustable spring strength allows it to be used on multiple door sizes and weights, making it a versatile solution for commercial installations.

INSTALLATION INFORMATION

Floor springs are installed inside the floor in a floor spring box beneath the door.

The door connects to the floor spring using:

• Bottom pivot spindle
• Top pivot bracket

Professional installation is recommended to ensure correct alignment and performance.

IMPORTANT INSTALLATION NOTE (PIVOT SET REQUIREMENT)

Floor springs are only one part of a complete pivot door system.

While the floor spring controls the closing and opening of the door, the weight of the door is carried by the pivot system.

For heavier doors (especially glass and large timber doors), it is critical to use a heavy-duty pivot set that is correctly rated for the door weight.

In many standard installations, basic pivot sets are used. However, these are often not suitable for large or high-traffic doors.

For optimal performance and long-term durability, we recommend:

• Using heavy-duty pivot sets for doors above 100kg
• Ensuring the top centre and bottom pivot are correctly specified
• Matching the pivot system to the door weight, not just the floor spring

Failure to use the correct pivot hardware can result in:

• Premature wear
• Misalignment
• Poor door operation

If you are unsure, The Stickman Store can recommend a complete pivot system to match your floor spring.

WHAT'S INCLUDED

• Floor spring body

• Stainless steel cover plate

• Fixing components

• Installation instructions

FLOOR SPRING QUICK SELECTION GUIDE

Door Weight | Typical Application | Recommended Floor Spring
Up to 100kg | Aluminium entrance doors | QS860
Up to 120kg | Glass shopfront doors | QS880/3
Up to 150kg | Heavy commercial doors | QS880/4
Up to 300kg | Large glass entrances | QS895/5
Adjustable strength | Commercial entrances | QS899V

NEED HELP CHOOSING A FLOOR SPRING?

Not sure which floor spring you need?

Send us your door width, door weight, or a photo of the door, and we will recommend the correct model.

If you are unsure which floor spring is suitable for your door, please contact The Stickman Store and we will gladly assist.

📧 Email: hello@thestickman.co.za