Airtac MDD Multi-position Double Rod Cylinder MDD20X20S
The AirTAC Airtac MDD Multi-position Double Rod Cylinder MDD20X20S is a genuine MD multi-mount cylinder (double rod), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 N of push force at 0.5 MPa. A bumper cushions the impact.
- TypeMulti-mount, double rod
- SeriesMD (standard)
- Bore20 mm
- Push thrust @0.5 MPa157.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port sizeM5x0.8
- CushionBumper
- MagnetWith magnet (sensor-ready)
- ThreadPT
- 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 MDD Multi-position Double Rod Cylinder MDD20X20S
The AirTAC MDD20X20S is a double-rod multi-mount cylinder: a compact square-body cylinder with a rod on both ends that fixes from 6 directions (front, back, left, right, top and bottom) and mounts side by side with other cylinders to save space. With a 20 mm bore and 20 mm stroke it gives about 157.1 N of theoretical push force at 0.5 MPa on each side, and its cushion is a bumper that absorbs end-of-stroke impact. This SKU carries the built-in magnet (trailing S), so magnetic switches can read position from the slots around the body.
This is a genuine AirTAC part in the standard MD family, so the rod is not prevented from rotating; it is a double-acting double-rod cylinder with output from both rod ends. Operating pressure is 0.15-1.0 MPa (22-145 psi), the medium is air filtered to 40 um, and the working temperature is -20 to 70 C (0 to 150 C only with the optional high-temperature seal material). We confirm dimensions and sizing from the datasheet on request.
Airtac MDD Multi-position Double Rod Cylinder MDD20X20S Technical Specifications
| Model | Airtac MDD Multi-position Double Rod Cylinder MDD20X20S |
|---|---|
| Type | Multi-mount cylinder, double rod |
| Series | MD (standard) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | With magnet (S) |
| 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 |
| Mounting | Fix from 6 directions; mountable side by side |
Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
How to choose
Size the 20 mm bore for roughly 157.1 N theoretical push at 0.5 MPa; go larger for more thrust, smaller for less. This is the MDD double-rod variant of the standard MD family (rotation allowed); if the load must not turn, move to the MK no-rotating family. Acting is double with rods on both ends, and the 20 mm stroke stays within the bore 20 table (up to 60 mm) with short covers - avoid over-long strokes on this compact body. The trailing S means the magnet is fitted for switch detection; omit S for the non-magnet version. Port thread is PT with a G option. Side-load capacity and exact per-stroke dimensions come from the datasheet - ask us to confirm.
Applications
Centering small parts before clamping
Drive two loads together using both rod ends of the MDD20X20S to center a small part before a downstream clamp, with the magnet enabling position sensing in the fixture.
Switch-monitored stopper on a pallet line
Fix the cylinder from any of 6 directions beside a pallet track and extend a rod as a stopper, using the built-in magnet and switch slots to confirm extended or retracted position.
Test-rig push-pull from one envelope
In a compact lab or test rig, use the double-rod body to push and pull a small sample from both sides without extra cylinders, mounting units side by side to save bench space.
FAQ
Should I choose MDD20X20S or the no-magnet MDD20X20?
Choose the S version when you need magnetic switches to detect piston position; the magnet is built in and the slots around the body accept the switches. The non-magnet version suits jobs where sensing is not required. Both are 20 mm bore double-rod double-acting cylinders with 0.15-1.0 MPa (22-145 psi) operating pressure and about 157.1 N theoretical push at 0.5 MPa.
Can the rod rotate, and how long a stroke can I order on a 20 mm bore?
As an MD-family cylinder, the rod is not prevented from rotating - the no-rotating plate feature belongs to the MK family. For stroke, the bore 20 table goes up to 60 mm; this 20 mm model keeps the covers short, and very long strokes on a compact multi-mount body should be avoided. Exact dimensions per stroke and side-load limits come from the datasheet - ask us to confirm.