
The AirTAC Airtac TN Double Axis Double Rod Cylinder TN20X70S is a genuine TN twin-rod (double-rod) double-acting cylinder, 20 mm bore. Two parallel rods on one plate resist bending and twisting and let the load mount without rotating. It delivers about 314.2 N of push at 0.5 MPa. A front bumper cushions the impact and adjusts the stroke over a -5 to 0 mm range.
A twin-rod cylinder guides its load between two parallel rods mounted on a shared plate, so the plate moves without rotating and resists bending and twisting. The 20 mm bore produces 314.2 N of push-side thrust at 0.5 MPa, well matched to pushers, clamps and light transfer duty, and the 70 mm stroke extends the working reach. A bumper on the front face cushions impact and adjusts the effective stroke over -5 to 0 mm.
TN20X70S is a genuine AirTAC part to the TN enterprise standard, double-acting, with PT thread ports and M5x0.8 port size on this bore. The magnet is fitted as standard with magnetic-switch slots around the body - it is not an add-on option. Medium is air filtered to 40 um, at 0.15-1.0 MPa (22-145 psi) for this bore, 30-500 mm/s. Datasheet confirmation of dimensions and side-load is available on request.
| Model | Airtac TN Double Axis Double Rod Cylinder TN20X70S |
|---|---|
| Type | Twin-rod cylinder, double acting |
| Series / standard | TN (enterprise standard) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 314.2 N |
| Port size | M5x0.8 (PT thread) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper, stroke adjustable -5 to 0 mm |
| Magnet | Standard (magnetic-switch slots around the body) |
Specifications follow the official AirTAC TN/TR twin-rod data. Operating pressure is set by bore (0.2 MPa minimum on the 6 and 10 mm bores). The front cover and piston are short, so avoid an over-long stroke. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
Select the 20 mm bore for twin-rod work needing 314.2 N push thrust at 0.5 MPa; smaller TN bores give less force, 25 and 32 mm more. TN is the enterprise-standard series and offers PT thread ports only - the JIS-standard TR series adds G and NPT options plus its precise guide grade, with higher non-rotating accuracy and a lubrication-free lengthening sliding-support guide. The 70 mm stroke is within this bore's table; as a rule, keep strokes modest on a short twin-rod body and route overhang and side-load questions to us for confirmation from the datasheet.
Pushes totes from a pick face onto a takeaway conveyor; the twin-rod plate keeps the push face parallel to the tote through the 70 mm stroke.
Presses bushings or fittings into housings on a small bench fixture; two rods resist the twisting moment a single-rod press would see.
Sets the gap between conveyor guide rails for different product widths; the non-rotating plate keeps both rails moving squarely together.
TN-series cylinders use PT thread ports only, with M5x0.8 ports on this 20 mm bore. If your installation needs G or NPT ports, the TR twin-rod series offers PT, G and NPT.
The twin-rod plate resists twisting, but allowable side load is published as curves rather than a single figure. Send us the load and mounting arrangement and we will confirm suitability and dimensions from the datasheet.