300N Hydraulic Gate Closer: A Guide to Smooth Self-Closing Gates
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A hydraulic gate closer is a simple but effective piece of hardware that helps a swing gate close smoothly, consistently and under control — instead of slamming shut or being left swinging open. SpringFixUK's 300N gate closer sets use a controlled hydraulic action (rather than a basic spring) to guide the gate through a smoother, quieter close, and are supplied with M8 or M10 fittings depending on your gate.
Choosing the right size, checking your gate and post are in good condition, and fitting the closer with correct alignment are the details that make the difference between a gate that closes smoothly every time and one that struggles. We've put together a full comparison of both options — with a compatibility checklist, installation basics and answers to the most common sizing questions — in our Hydraulic Gate Closer Buying Guide.
Quick links:
- Not sure if you need M8 or M10? See the full M8 vs M10 comparison and compatibility checklist.
- Want to work out the right size from your gate's weight and width? Try our Gate Closer Size & Fitting Guide.
- Ready to order? Shop our hydraulic gate closer range — garden, heavy duty and self-closing gate closer sets in stock.
Both SpringFixUK gate closer sets include the closer, mounting brackets, fixings and a fitting guide, with same-day UK dispatch on orders placed before 16:00 (Monday to Sunday) via Royal Mail, Yodel, UPS or DPD.