Hormann Garage Door Spring No. 777 (replacement)

set (4 pcs)

Set of springs for Hörmann garage door No. 777

The offered set includes:

• 2 × outer springs
• 2 × inner springs

➡️ Total of 4 springs – a set for one side of the door

⚠️ Important technical information

This set is intended for replacing springs on one side of the door.

If your door has springs on both sides –

a set for two sides is available in our other auction:

➡️ a set for two sides (8 springs: 4 outer + 4 inner)

? Technical Data

• Spring number: 777 / N777
• Outer springs: 665 mm long
• Inner springs: 705 mm long
• Product compatible with Hörmann system no. 777
• EAN: 5904280415965
• Manufacturer: Max Serwis

✅ Why a set of 4 pieces?

Replacing the set on one side:

• ensures even tension,
• eliminates differences in wear,
• extends the mechanism's lifespan,
• improves door operation safety.

? Safety

Springs operate under high tension.

Installation should be performed by an experienced person.

Need more springs/other sizes?

We invite you to check our other auctions and contact us directly!

MANUFACTURER

You are buying directly from the spring manufacturer!!

MANUFACTURER OF TECHNICAL SPRINGS

We are a manufacturer of technical springs and wire products. We produce tension, compression, torsion, and spiral springs, as well as rings, protective casings, and wire elements – according to a sample, drawing, or description.

We fulfill both individual pieces and serial production. We focus on dimensional repeatability, quality control, and suitability for application.