AirTAC SCD40 Double-Rod Tie-Rod Cylinder, 40 mm Bore
Every AirTAC SCD40 configuration on one page: 66 stock order codes with strokes from 6 to 800 mm, 1 mounting style and magnet and seal versions, from $50.00. Pick a stroke, mounting and version to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC SCD40
The AirTAC SCD40 is a double-rod, double-acting tie-rod cylinder with a 40 mm bore and a 16 mm piston rod. The rod runs through both end covers, so push and pull are equal: 528 N at 0.5 MPa and 739 N at 0.7 MPa. Force depends on bore and pressure only, so every stroke on this page gives the same output.
All SCD40 versions share 1/4" air ports, an M12×1.25 rod thread and 21 mm adjustable air cushions. The cylinder runs on filtered air between 0.15 and 1.0 MPa (proof 1.5 MPa), from -20 to +70 °C, at 30 to 800 mm/s. This page lists 66 stock order codes with strokes from 6 to 800 mm; catalog standard strokes run up to 800 mm.
SCD40 Technical Specifications
| Bore size | Ø40 mm |
|---|---|
| Stock strokes | 6 – 800 mm |
| Catalog standard stroke | up to 800 mm (longer on request) |
| Acting type | Double acting, double rod |
| Port size | 1/4" (PT standard) |
| Piston rod / rod thread | Ø16 mm / M12×1.25 |
| Fluid | Air (filtered by 40 µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
Source: AirTAC Products Catalog 2026A, SC series (SCD double-rod version, same body as SC).
Theoretical output force (Ø40 mm)
| Pressure | Push | Pull |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | 739 N |
Both directions act on the bore area minus the Ø16 mm rod area, because the rod passes through both end covers. Usable force is lower because of friction and back-pressure.
How the SCD40 Order Code Is Built
| SCD40 | Series and bore (40 mm) |
|---|---|
| X100 | Stroke in mm |
| S | Built-in magnet for position sensors (blank = none) |
| TC | Mounting: TC center trunnion |
| H / N | Seal: H = FKM, N = NBR (blank = standard seal) |
| G | Port thread: G = G (BSPP), blank = PT |
All AirTAC SCD40 Order Codes (66)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Stroke (mm) | Mounting | Magnet · Seal · Thread | Price | Select |
|---|---|---|---|---|---|
| SCD40X6 | 6 mm | Basic (no mounting) | - · std seal · PT | $50.00 | |
| SCD40X15 | 15 mm | Basic (no mounting) | - · std seal · PT | $50.00 | |
| SCD40X15S | 15 mm | Basic (no mounting) | S · std seal · PT | $52.80 | |
| SCD40X15STC | 15 mm | TC center trunnion | S · std seal · PT | $70.01 | |
| SCD40X16 | 16 mm | Basic (no mounting) | - · std seal · PT | $50.00 | |
| SCD40X16S | 16 mm | Basic (no mounting) | S · std seal · PT | $52.80 | |
| SCD40X20 | 20 mm | Basic (no mounting) | - · std seal · PT | $50.00 | |
| SCD40X25 | 25 mm | Basic (no mounting) | - · std seal · PT | $50.00 | |
| SCD40X25S | 25 mm | Basic (no mounting) | S · std seal · PT | $52.80 | |
| SCD40X30 | 30 mm | Basic (no mounting) | - · std seal · PT | $51.61 | |
| SCD40X30H | 30 mm | Basic (no mounting) | - · FKM · PT | $59.52 | |
| SCD40X30S | 30 mm | Basic (no mounting) | S · std seal · PT | $54.40 | |
| SCD40X35 | 35 mm | Basic (no mounting) | - · std seal · PT | $51.61 | |
| SCD40X36 | 36 mm | Basic (no mounting) | - · std seal · PT | $51.61 | |
| SCD40X40 | 40 mm | Basic (no mounting) | - · std seal · PT | $51.61 | |
| SCD40X40S | 40 mm | Basic (no mounting) | S · std seal · PT | $54.40 | |
| SCD40X50 | 50 mm | Basic (no mounting) | - · std seal · PT | $51.61 | |
| SCD40X50S | 50 mm | Basic (no mounting) | S · std seal · PT | $54.40 | |
| SCD40X60 | 60 mm | Basic (no mounting) | - · std seal · PT | $52.80 | |
| SCD40X60S | 60 mm | Basic (no mounting) | S · std seal · PT | $55.59 | |
| SCD40X70 | 70 mm | Basic (no mounting) | - · std seal · PT | $52.80 | |
| SCD40X75 | 75 mm | Basic (no mounting) | - · std seal · PT | $52.80 | |
| SCD40X75S | 75 mm | Basic (no mounting) | S · std seal · PT | $55.59 | |
| SCD40X80 | 80 mm | Basic (no mounting) | - · std seal · PT | $54.40 | |
| SCD40X80S | 80 mm | Basic (no mounting) | S · std seal · PT | $57.19 | |
| SCD40X93 | 93 mm | Basic (no mounting) | - · std seal · PT | $54.40 | |
| SCD40X100 | 100 mm | Basic (no mounting) | - · std seal · PT | $54.40 | |
| SCD40X100S | 100 mm | Basic (no mounting) | S · std seal · PT | $57.19 | |
| SCD40X110S | 110 mm | Basic (no mounting) | S · std seal · PT | $58.59 | |
| SCD40X116 | 116 mm | Basic (no mounting) | - · std seal · PT | $123.08 | |
| SCD40X120 | 120 mm | Basic (no mounting) | - · std seal · PT | $55.80 | |
| SCD40X125 | 125 mm | Basic (no mounting) | - · std seal · PT | $55.80 | |
| SCD40X125S | 125 mm | Basic (no mounting) | S · std seal · PT | $58.59 | |
| SCD40X150 | 150 mm | Basic (no mounting) | - · std seal · PT | $57.45 | |
| SCD40X150S | 150 mm | Basic (no mounting) | S · std seal · PT | $60.24 | |
| SCD40X150STC | 150 mm | TC center trunnion | S · std seal · PT | $77.45 | |
| SCD40X160 | 160 mm | Basic (no mounting) | - · std seal · PT | $58.84 | |
| SCD40X160S | 160 mm | Basic (no mounting) | S · std seal · PT | $61.63 | |
| SCD40X165 | 165 mm | Basic (no mounting) | - · std seal · PT | $58.84 | |
| SCD40X175 | 175 mm | Basic (no mounting) | - · std seal · PT | $58.84 | |
| SCD40X175S | 175 mm | Basic (no mounting) | S · std seal · PT | $61.63 | |
| SCD40X200 | 200 mm | Basic (no mounting) | - · std seal · PT | $60.71 | |
| SCD40X200S | 200 mm | Basic (no mounting) | S · std seal · PT | $63.50 | |
| SCD40X200STC | 200 mm | TC center trunnion | S · std seal · PT | $80.71 | |
| SCD40X220S | 220 mm | Basic (no mounting) | S · std seal · PT | $64.89 | |
| SCD40X225S | 225 mm | Basic (no mounting) | S · std seal · PT | $64.89 | |
| SCD40X250 | 250 mm | Basic (no mounting) | - · std seal · PT | $63.70 | |
| SCD40X250S | 250 mm | Basic (no mounting) | S · std seal · PT | $66.50 | |
| SCD40X300 | 300 mm | Basic (no mounting) | - · std seal · PT | $66.96 | |
| SCD40X300S | 300 mm | Basic (no mounting) | S · std seal · PT | $69.76 | |
| SCD40X330 | 330 mm | Basic (no mounting) | - · std seal · PT | $70.01 | |
| SCD40X350 | 350 mm | Basic (no mounting) | - · std seal · PT | $70.01 | |
| SCD40X350S | 350 mm | Basic (no mounting) | S · std seal · PT | $72.80 | |
| SCD40X350STC | 350 mm | TC center trunnion | S · std seal · PT | $90.02 | |
| SCD40X370S | 370 mm | Basic (no mounting) | S · std seal · PT | $76.27 | |
| SCD40X380 | 380 mm | Basic (no mounting) | - · std seal · PT | $73.47 | |
| SCD40X400 | 400 mm | Basic (no mounting) | - · std seal · PT | $73.47 | |
| SCD40X400S | 400 mm | Basic (no mounting) | S · std seal · PT | $76.27 | |
| SCD40X500 | 500 mm | Basic (no mounting) | - · std seal · PT | $79.78 | |
| SCD40X500S | 500 mm | Basic (no mounting) | S · std seal · PT | $82.57 | |
| SCD40X530 | 530 mm | Basic (no mounting) | - · std seal · PT | $86.04 | |
| SCD40X620 | 620 mm | Basic (no mounting) | - · std seal · PT | $92.35 | |
| SCD40X650 | 650 mm | Basic (no mounting) | - · std seal · PT | $92.35 | |
| SCD40X700 | 700 mm | Basic (no mounting) | - · std seal · PT | $92.35 | |
| SCD40X700S | 700 mm | Basic (no mounting) | S · std seal · PT | $95.14 | |
| SCD40X800 | 800 mm | Basic (no mounting) | - · std seal · PT | $98.86 |
Need a combination that is not listed? Request a quote.
Where the SCD40 Is Used
Pick-and-place and transfer
About 528 N at 0.5 MPa suits pushers, stoppers and transfer slides.
Packaging machines
Carton pushers, gates and diverters on packaging lines.
Sensed positioning
Magnet versions report stroke ends to the PLC through cylinder sensors.
Choosing the Right SCD40 Configuration
Start with the stroke. Pick the exact travel your machine needs; a longer stroke adds length, weight and air consumption without adding force. If your length is not listed, request a quote and we will confirm whether it can be built.
Then choose the mounting. Basic (no code) uses the cylinder's own mounting holes. This bore is stocked with TC center trunnion. Foot and flange mountings hold the cylinder rigid for straight-line loads; clevis and trunnion mountings let it pivot when the load moves in an arc.
Finally pick the version: S adds a magnet for position sensors; the standard seal suits general automation; H (FKM) is for higher temperatures or oil-contaminated air.
AirTAC SCD40 FAQ
No. Every SCD40 gives about 528 N in both directions at 0.5 MPa, whatever the stroke.
1/4" ports, PT thread as standard.
Basic plus TC center trunnion. Use foot or flange for straight-line loads, clevis or trunnion when the cylinder must pivot.
Usually yes. Request a quote with the stroke, mounting and version and we will confirm whether it can be built, plus price and lead time.
0.15 to 1.0 MPa operating pressure (proof 1.5 MPa) and -20 to +70 °C on filtered air.
No. You can order a single SCD40. Orders are processed and handed to the carrier within 3-5 business days.
Buying the SCD40 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-11-03.
Request a Quote for the SCD40
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.