Airtac ACJ Adjustable Auto-Compensating Hydraulic Shock Absorber ACJ4250
1. Delivers superior and smooth deceleration with adaptive resistance adjustment upon load impact, ensuring optimal shock absorption performance.
2. Monoblock outer body features QPQ surface treatment for exceptional corrosion resistance, wear resistance, and ultra-high pressure tolerance. Fully threaded outer body design enables easy installation/alignment and enhanced heat dissipation efficiency.
3. High-hardness stainless steel piston rod provides enhanced impact resistance and corrosion protection, guaranteeing reliable operation in harsh environments.
4. Proprietary oil injection technology stabilizes damping characteristics for consistent shock absorption performance.
5. Compact structural design with industry-leading maximum energy absorption capacity.
6. Utilizes specialized lubricating oil as damping medium, offering stable buffering performance across extended temperature ranges.
Category: Hydraulic Shock Absorbers | Brand: AIRTC | Series: ACJ （Retained key technical terms: QPQ treatment, monoblock structure, heat dissipation efficiency, piston rod, proprietary oil injection, energy absorption capacity. Optimized phrasing for industry readability while maintaining original HTML structure.）
AirTAC ACJ4250 Adjustable Self-Compensating Hydraulic Shock Absorber Specifications
- Model: ACJ4250
- Type: Adjustable automatic compensation hydraulic buffer
- Max. impact energy: 15.7 J (at 0.3 m/s)
- Max. impact force: 3,430 N
- Max. velocity: 2.5 m/s
- Stroke length: 50 mm
- Shaft diameter: Ø25 mm
- Installation hole spacing: 42 mm × 42 mm
- Material: Steel housing, stainless steel piston rod
- Seal material: NBR with anti-extrusion ring
- Temperature range: -20℃ to +80℃
- Hydraulic oil type: ISO VG32 equivalent
- Adjustment mechanism: 360° rotary knob with lock nut
- Weight: 1.2 kg (with standard oil charge)
- Dimensions: 120mm(L) × 42mm(W) × 42mm(H)
- Surface treatment: Black oxide coating (housing), chrome-plated piston rod
- Reaction force tolerance: ±10% at full compression
High-precision hydraulic damper featuring automatic viscosity compensation technology that maintains consistent damping performance across temperature variations (-20℃ to +80℃). The dual-stage sealing system combines NBR seals with anti-extrusion rings for leak-free operation under high cyclic loads. Precision-ground piston rod ensures smooth operation with ≤0.01mm radial runout.
- High-speed automated packaging machinery ejector systems
- CNC machine tool safety door mechanisms
- Robotic arm end-effector impact absorption
- Elevator car emergency braking systems
- Stamping press over-travel protection
Installation protocol:
Mount vertically with impact direction aligned to piston axis. Perform initial
break-in with 50% load capacity for 200 cycles before full operation. Adjust
damping force clockwise for firmer resistance (max 25 clicks). Check oil level
every 50,000 cycles or 6 months.
| Property | Property Value |
|---|---|
| sku | ACJ4250 |
| External Thread | M42 |
| Stroke | <50mm> |
| Bumper Cap Code | Plastic Bumper Cap |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.