
The AirTAC Airtac MDJ Adjustable Cylinder MDJ25X35-30S is a genuine MD multi-mount cylinder (adjustable stroke), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 245.4 N of push force at 0.5 MPa. A bumper cushions the impact.
The MDJ25X35-30S is an adjustable-stroke multi-mount cylinder with a compact square body fixed from 6 directions: front, back, left, right, top and bottom. Units mount side by side to save space, and the magnetic-switch slots run around the body with high guide precision and no added lubricant needed. With a 25 mm bore, a 35 mm stroke and a 30 mm adjustable range added on top, this double-acting unit produces a theoretical push thrust of 245.4 N at 0.5 MPa (operating pressure 0.15-1.0 MPa / 22-145 psi) and cushions with a bumper, so you can tune stroke position after the cylinder is installed.
This is a genuine AirTAC part in the MD standard family rather than the MK no-rotating family, and the S suffix shows this SKU includes the magnet. Porting is M5x0.8 with a PT thread as coded. Dimensions and weight vary with stroke and adjustment, so we confirm those figures from the AirTAC datasheet on request.
| Model | Airtac MDJ Adjustable Cylinder MDJ25X35-30S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MD (standard) |
| Bore | 25 mm |
| Push thrust @0.5 MPa | 245.4 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.
Pick the 25 mm bore when the theoretical push thrust of 245.4 N at 0.5 MPa covers your load; other bores shift that figure up or down. MD is the standard family where rod rotation is allowed; choose MK instead when rotation must be prevented. Acting is double acting with a 30-500 mm/s speed range. The 35 mm stroke is well inside the 60 mm maximum for a 25 mm bore double-acting unit, and the MDJ design adds a 30 mm adjustable range on top for on-site tuning. Keep strokes proportionate to the short compact cover rather than over-long, and direct any side-load question to us or the datasheet. The trailing S means the magnet is included; a non-S SKU omits it. Thread is PT as coded, with G available as a suffix.
Clamp varied small parts with 245.4 N of push at 0.5 MPa from the 25 mm bore, using the 30 mm adjustment to match each fixture's grip point.
Use the magnetic-switch slots around the body with the built-in magnet for end-of-stroke sensing in compact pick-and-place stations mounted side by side.
Fix the square body from any of 6 directions in a straightening or alignment station and fine-tune push position across the 30 mm adjustable range.
Yes. The trailing S in the model code means this SKU includes the magnet, and the multi-mount body has magnetic-switch slots around it so switches can be seated on any side. Specific compatible sensor part numbers are listed in the AirTAC catalogue; ask us and we will confirm them from there.
The multi-mount square body can be fixed from 6 directions: front, back, left, right, top and bottom. That also lets you mount several units side by side to save space. Note that overall dimensions change with stroke, so confirm the exact footprint from the datasheet before laying out the machine plate.