Airtac MDJ Adjustable Cylinder MDJ20X15-20S
The AirTAC Airtac MDJ Adjustable Cylinder MDJ20X15-20S is a genuine MD multi-mount cylinder (adjustable stroke), 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, adjustable stroke
- 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 MDJ Adjustable Cylinder MDJ20X15-20S
The MDJ20X15-20S is an AirTAC multi-mount cylinder, a compact square-body cylinder that fixes from 6 directions: front, back, left, right, top and bottom. Mounting cylinders side by side saves space in dense machine layouts. This is the adjustable-stroke, double-acting version in a 20 mm bore with 15 mm base stroke plus a 20 mm adjustable range, giving about 157.1 N of theoretical push thrust at 0.5 MPa, with a bumper as the cushion.
It is a genuine AirTAC part. The MD family is the standard multi-mount cylinder; the MK family is the no-rotating version for applications where the rod must not turn. This SKU carries the magnet (trailing S), ready for magnetic-switch sensing in the slots around the body. We confirm dimensions and sizing from the datasheet on request.
Airtac MDJ Adjustable Cylinder MDJ20X15-20S Technical Specifications
| Model | Airtac MDJ Adjustable Cylinder MDJ20X15-20S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| 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
Start from thrust: this 20 mm bore delivers about 157.1 N theoretical push at 0.5 MPa in double-acting use. Use MD if rod rotation is allowed, MK if it must be prevented. Acting options are double, single push, single pull, double rod and adjustable stroke; this SKU is the adjustable-stroke double-acting type with a 20 mm adjustable range on the 15 mm base stroke. Bore 20 handles strokes up to 60 mm, but avoid an over-long stroke on the short compact cover. The S suffix here means the magnet is included; drop it if you do not need sensing. Thread is PT by default, G to order. For side-load capability, confirm from the datasheet or ask us.
Applications
Clamping in multi-part fixtures
Holds small workpieces in clamping fixtures arranged in a row; side-by-side mounting and the adjustable range suit varied part heights.
Rotary-table indexing detent
Extends into a detent notch to index or lock a small rotary table, with the magnet (S) confirming the engaged position via switch.
Compact pick-and-place
Provides the vertical press stroke of a small pick-and-place unit in tight cells, fixed from whichever of the 6 directions the frame allows.
FAQ
How do I choose between MDJ20X15-20S and MDJ20X15-20?
Both are the same 20 mm bore, 15 mm stroke, double-acting adjustable cylinder with a 20 mm adjustable range. The S suffix on this SKU means the magnet is included for magnetic-switch sensing; the version without S has no magnet.
What mounting and loading limits apply?
The square body fixes from 6 directions so cylinders can be mounted side by side to save space, and the compact cover means a very long stroke should be avoided. Confirm dimensions for this stroke and any allowable side-load from the datasheet or ask us.