Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S is a genuine double-acting aluminum-barrel mini cylinder with a Ø50mm bore, a 450mm nominal stroke and a rear adjustable-stroke stopper — trim up to 30mm for a usable window of 420–450mm. Adjustable air cushion (both ends).
- BoreØ50 mm
- Stroke450 mm
- Adjustable420–450 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S
The AirTAC MBLCJ50X450-30S is a compact, double-acting mini round cylinder engineered for high-force pneumatic positioning. It features a rear travel stopper that trims up to 30 mm of movement, creating a precise usable stroke window of 420 to 450 mm. Driven by a Ø16 mm carbon-steel rod, it delivers 981 N of push force and 881 N of pull force at 0.5 MPa. This model includes a built-in magnet (-S) for compatibility with AirTAC CMSG reed and DMSG or EMSG solid-state sensor switches to track rod position.
Distinguishing this SKU from a standard MBLJ is the integrated adjustable air cushion at both ends. While the base MBLJ relies on a fixed rubber bumper, the MBLCJ allows you to screw-tune the end-of-stroke deceleration. This protects the aluminum end covers from impact damage during fast, heavy 450 mm traversals. The rear stopper sets the travel end-point but does not hold the load; similarly, the cushion only decelerates and is not a mechanical lock. The riveted aluminum barrel and grease-retaining piston seal ensure consistent operation within the 30 to 800 mm/s speed range.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø50 mm |
| Nominal stroke | 450 mm |
| Adjustable window | 420–450 mm (trim 30 mm) |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| Fluid | Air (filtered by 40µm 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 air cushion (both ends) |
| Max standard stroke | Up to 500 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 50 | Bore size in mm. |
| ×450 | Nominal stroke length in mm. |
| -30 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S Is Used
Injection Mold Extraction
Extracts heavy molded plastic parts from deep cavities. The 981 N push force reliably pushes stubborn parts off cores, while the 420 to 450 mm window accommodates varying mold depths.
Packaging Press Deceleration
Drives a carton sealing press where the tunable air cushion gently slows the 1374 N force at 0.7 MPa before the end of stroke, preventing cardboard crushing and cover fracture.
Textile Calendering Guide
Positions a fabric tensioning roller in a calendering machine. The 450 mm travel handles wide fabric widths, and the DMSG electronic sensor confirms full extension.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S the Right Cylinder?
When sizing this 50 mm bore, stepping down to the 40 mm bore yields 628 N of push force at 0.5 MPa, whereas stepping up to the 63 mm bore provides 1558 N. Choose the MBLCJ50X450-30S when your mechanism requires substantial thrust across a long 420 to 450 mm window with controlled deceleration. Compared to the MBLC (fixed stroke + cushion) or MBLJ (adjustable stroke + fixed bumper), this model provides both travel tuning and impact protection. Mounting is limited to Basic, FA flange, or LB foot; there is no SDB pivot or back-cover option. The overall length equals A + 2 x stroke + adjust. Because the stroke is 450 mm, the 16 mm rod is highly susceptible to side-load bending; an external guide rail is mandatory to prevent premature seal failure. For replacements, match the 50 mm bore, 450 mm stroke, 30 mm adjust code, G1/4 port, PT thread, and the -S magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ50X450-30S FAQ
At 0.5 MPa, this 50 mm bore cylinder provides 981 N of push force and 881 N of pull force. At 0.7 MPa, the push force increases to 1374 N. The maximum theoretical force is 200 kgf at 1.0 MPa. The operating pressure range is 0.15 to 1.0 MPa.
The rear adjuster allows you to trim up to 30 mm of travel, giving a usable stroke window of 420 to 450 mm. This mechanism acts strictly as a travel stop to set the end position; it does not hold a load. Likewise, the adjustable air cushion only decelerates the piston near the stroke ends. For position holding without continuous air pressure, an external locking device is required.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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