Airtac MDD Multi-position Double Rod Cylinder MDD20X30S
The AirTAC Airtac MDD Multi-position Double Rod Cylinder MDD20X30S 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 MDD20X30S
The AirTAC MDD20X30S is a double rod variant of the MD multi-mount cylinder: a compact square-body air cylinder with a 20 mm bore and 30 mm stroke that can be fixed from six directions - front, back, left, right, top and bottom. Because the square body can be bolted side by side, several units can sit flush against each other on the same plate to save space, and magnetic-switch slots run around the body for easy switch fitting. Running double acting on air filtered to 40 um, it works from 0.15-1.0 MPa (22-145 psi), delivers a theoretical push thrust of 157.1 N and a rod-side thrust of 131.9 N at 0.5 MPa, and cushions with a bumper rather than an air cushion. With a rod on both ends, this 30 mm stroke unit can push and pull from either face of the body.
This is a genuine AirTAC part from the MD family, the standard multi-mount series in which the piston rod is free to rotate; for applications that must prevent rod rotation, the MK family adds a no-rotating plate instead. The trailing S means this SKU is built with a magnet for switch detection, so it is not an option to add later - it is as shown. We confirm exact dimensions, weights and side-load limits from the datasheet on request, since every value depends on the stroke.
Airtac MDD Multi-position Double Rod Cylinder MDD20X30S Technical Specifications
| Model | Airtac MDD Multi-position Double Rod Cylinder MDD20X30S |
|---|---|
| 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
Choose the bore first: at 0.5 MPa a 20 mm bore gives 157.1 N push and 131.9 N pull, so step up to 25 mm (245.4 N push) or 32 mm (402.1 N push) if your clamp or press needs more force. Decide between MD, where rotation is allowed, and MK, where a plate prevents it. Then pick the acting type: MD double acting, MSD/MSK single acting push, MTD/MTK single acting pull, MDD/MKD double rod, or MDJ/MKJ with a 10/20/30 mm adjustable range. This MDD20X30S is a 20 mm double rod, double acting unit with a 30 mm stroke, within the 60 mm maximum for bore 20; keep the stroke short of the cover travel, since an over-long stroke risks bottoming hard. The trailing S adds the magnet; without it the cylinder has no switch trigger. Ports are M5x0.8 on bore 20, with a choice of PT (default) or G threads. Allowable side-load figures are not listed here, so route that check to us.
Applications
Two-sided clamping of small parts
A 20 mm double rod clamp grips a machined component from both sides of a fixture at once - push thrust of 157.1 N at 0.5 MPa holds the part while it is drilled or inspected.
Jig positioning on fixture plates
Mounted side by side on a test jig, the square bodies advance pins into bores from both top and side faces, using the 6-direction fixing to line up each position on one plate.
Conveyor stopper blade
Fitted to the side of a conveyor line, the 30 mm stroke extends a stop blade into the product path and retracts it, with the built-in magnet confirming the up and down positions.
FAQ
What does the S in MDD20X30S mean, and what is the thrust?
The trailing S means this SKU is built with a magnet for proximity-switch detection; the code decodes as a 20 mm bore, 30 mm stroke, double rod, double acting multi-mount cylinder. At 0.5 MPa the bore 20 double-acting figures are 157.1 N on the push side and 131.9 N on the rod side. Pressure range is 0.15-1.0 MPa (22-145 psi).
Where can this cylinder be mounted from?
The square multi-mount body can be fixed from six directions - front, back, left, right, top and bottom - and units can be bolted side by side to save space. Exact overall dimensions and the allowable side-load depend on the stroke, so confirm them from the datasheet or ask us before designing the mounting.