Hydraulic Gate Closer M8 Adjustable Valve Soft Close Self-Closing Arm Heavy Duty Set

Not sure if you need M8 or M10? Use our free Gate Closer Size Finder before you order — takes 10 seconds and helps you avoid ordering the wrong size.

M8 Hydraulic Gate Closer with Adjustable Valve – Soft Close Self-Closing Arm for Garden Gates

Smooth, controlled closing for pedestrian garden and side swing gates. This heavy-duty hydraulic gate closer helps prevent slamming, reduces hinge and latch wear and keeps your gate safely self-closing – useful where children or pets are around.

Key Features

• Adjustable-valve hydraulic soft-close – turn the built-in valve to fine-tune the closing speed for a smoother, quieter close
• Adjustable closing force via bracket height holes (soften the close by choosing the nearest-to-post hole)
• M8 fittings – please match your existing thread size with the listing photos
• Weather-resistant steel body with black powder-coated finish
• Suitable for metal, wooden or composite swing gates

What's Included

• 1 × adjustable-valve hydraulic gate closer (M8 elbow fittings)
• 1 × long mounting bracket (adjustment holes)
• 1 × post mounting bracket
• Fixings + basic fitting guide

Technical Specifications

Centre-to-centre length	792mm
Stroke	300mm
Body diameter	22mm (25mm plastic rod protection tube)
End fittings	M8 elbow joints
Max gate weight	80kg
Max gate size	2500mm high × 1200mm wide
Finish	Black

The M8 and M10 versions share the same closer body and length; only the thread size of the end fittings and brackets differs. Measure the space between your post and gate before ordering.

Fitment Notes

• Designed for pedestrian / garden swing gates (up to ~80kg when fitted as shown)
• Gate must swing freely; stiff hinges reduce the soft-close effect
• If you're unsure between M8 vs M10, message us with a photo of your existing fitting
• Fitting to a wooden post? Use screws/bolts at least 40mm into solid, sound timber — avoid fixing into softwood battens, old or rotten wood, as this is the most common cause of the bracket working loose over time

Dispatch & Delivery

Orders placed Mon–Sun before 16:00 are dispatched same day. Sent via Royal Mail, Yodel, UPS or DPD depending on size/destination.

30-day returns – buy with confidence.