Nemtek Compression Spring 1, 5kg Electric Fence Tensioner Spring (Box of 50)
Box of 50 Nemtek Compression Spring 1 tensioners (ES-CNT): standard 5kg stainless steel spring in a black UV stabilised plastic body, for wire up to 1.2mm. The quantity for full fence jobs.
- 50Springs per box
- 5kgStandard tension (silver spring)
- Up to 1.2mmWire size
- -40 to 80°COperating temperature
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Alectra Hatfield 648 Jan Shoba Street, HatfieldMon to Fri 07:30 to 17:00, Sat 08:00 to 17:00Get directions
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Alectra Wonderboom Braam Pretorius Street, WonderboomMon to Sun 08:00 to 16:45Get directions
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A box of 50 Nemtek Compression Spring 1 tensioners for full fence jobs and installers who keep stock. Each one is the standard 5kg electric fence spring tensioner from Nemtek: a silver stainless steel spring in a black UV stabilised plastic body that fits in line on the wire and holds the strand tight. Nemtek rates it for wire up to 1.2mm and any type of fence wire. For a repair or one extra line, the single spring is on its own page.
What's in the box
- 50 Nemtek Compression Spring 1 tensioners, black body (ES-CNT)
How many springs does a fence need?
Nemtek does not state a springs-per-fence figure. Count the strands you will tension on your own layout and keep spares; on a six or eight line fence the number climbs quickly, which is why the box of 50 exists. Each spring also needs a large tail hook to link it to the end bobbin, so pair the box with a pack of hooks.
Same spring as the single
Nothing changes but the quantity. Silver is Nemtek's standard 5kg tension class, rated for wire up to 1.2mm, so it is the match for 1.2mm galvanised and 1.2mm stainless steel wire. Gold is the medium 8kg class that Nemtek pairs with 1.6mm aluminium wire, sold here as the Hybrid Compression Spring 2 in a 50 pack. These silver springs are also what we supply in our 6 line and 8 line fence kits on 1.6mm aluminium wire; if you want more pull on aluminium, step up to gold.
Fits in line on the wire, not on the post
The spring sits in the wire run at the end of a strand, hooked to a flat bar or round bar bobbin. It does not bolt to the bracket or post. Nemtek's instruction sheet has you preload the spring with a nail before fixing the wire with a ferrule or line clamp.
Stainless spring, plastic body
The spring is stainless steel and the black body is UV stabilised plastic, not a coating. The plastic inner stops galvanic reaction between spring and wire. Nemtek rates the spring for -40 to 80°C and 0 to 12kV. The box of 50 is our quantity; Nemtek lists no pack size for the spring.
Key features
- Box of 50 for a full fence. The quantity for new fences and installers who keep stock. The single is on its own page.
- Standard 5kg tension. Nemtek's silver spring is its standard tension class and maintains constant tension on the strand.
- For wire up to 1.2mm. Nemtek rates it for wire up to 1.2mm, with any type of fence wire.
- Stainless steel spring. Not galvanised. The black body is UV stabilised plastic, not a coating.
- Plastic inner stops galvanic reaction. Keeps the stainless spring and the fence wire apart.
- Fits in line on the wire. Hooked to the end bobbin with a Nemtek large tail hook. Not a post fitting.
- -40 to 80°C, 0 to 12kV. Nemtek's temperature and fence voltage ratings.
- 1 year warranty. Nemtek covers its fencing components for one year from the date of sale.
Specifications
| Nemtek name | Compression Spring 1 (CNT) |
|---|---|
| Nemtek code | ES-CNT (black body) |
| Tension class | Standard 5kg (silver spring) |
| Wire size | Up to 1.2mm |
| Wire type | Any fence wire |
| Spring material | Stainless steel |
| Body | Black UV stabilised plastic |
| Inner | UV stabilised plastic, stops galvanic reaction |
| Operating temperature | -40 to 80°C |
| Fence voltage | 0 to 12kV |
| Fitting | In line on the wire; preload with a nail (Nemtek instruction sheet) |
| Connection to insulator | Nemtek large tail hook, sold separately |
| Tensioning | By hand (no ratchet) |
| Sold as | Box of 50 |
| Pack contents | 50 springs |
| Warranty | 1 year |
Not in the box
- Large tail hooks
- Ratchet tensioners (spring only)
- Fence wire
Manuals and documents
Questions people ask
Nemtek does not state a figure. Count the strands you will tension on your layout and add spares. A box of 50 covers most home boundaries with some left over.
Yes. The Nemtek Compression Spring 1 (ES-CNT), standard 5kg, black body. Only the quantity differs.
Nemtek rates the silver spring for wire up to 1.2mm and pairs 1.6mm aluminium wire with the gold 8kg Hybrid Compression Spring 2. Our 6 line and 8 line fence kits are supplied with these silver springs on 1.6mm aluminium wire. For more pull on aluminium, choose the gold spring.
No. Each spring needs a Nemtek large tail hook to link it to the bobbin; the hooks are sold in a pack of 50.
No. This is the spring alone, tensioned by hand. Nemtek's Hybrid Compression Spring 1 is the same 5kg spring with a ratchet built in.
No. It fits in line on the wire at the end of a strand, hooked to the insulator.
No. Nemtek lists no pack size for the spring. The box of 50 is our quantity.
No, anyone can buy it. The fence itself must be installed and certified by a registered electric fence installer. Alectra supplies the equipment only.
Need it fitted? Alectra Solutions supplies product only. Ask the branch and we will point you to installers in Pretoria.