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Cushion Lock
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Model

XCCLLHNAI

Control
  • Standard Options
  • C
    Tamper Resistant - Factory Set
  • L
    Standard Screw Adjustment
  • Additional Options
  • R
    Lockwired Screw Adjustment
Functional Setting Range
  • Standard Options
  • A
    1000 - 4000 psi w/4 psi Check (70 - 280 bar w/ 0,3 bar Check), 3000 psi (210 bar) Standard Setting
  • B
    400 - 1500 psi w/4 psi Check (28 - 105 bar w/ 0,3 bar Check), 1000 psi (70 bar) Standard Setting
  • H
    1000 - 4000 psi w/25 psi Check (70 - 280 bar w/ 1,7 bar Check), 3000 psi (210 bar) Standard Setting
  • I
    400 - 1500 psi w/25 psi Check (28 - 105 bar w/ 1,7 bar Check), 1000 psi (70 bar) Standard Setting
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Pilot Ratio (4th Letter) of Primary Cartridge
  • Standard Options
  • A
    3:1 (with CBCA primary cartridge, 3:1 pilot ratio, standard capacity counterbalance valve)
  • B
    1.5:1 (with CBCB primary cartridge, 1.5:1 pilot ratio, standard capacity counterbalance valve)
  • G
    4.5:1 (with CBCG primary cartridge, 4.5:1 pilot ratio, standard capacity counterbalance valve)
  • A
    3:1 (with CBCAX primary cartridge, Fixed setting, 3:1 pilot ratio, standard capacity counterbalance valve)
  • G
    4.5:1 (with CBCGX primary cartridge, Fixed setting, 4.5:1 pilot ratio, standard capacity counterbalance valve)
  • B
    1.5:1 (with CBCBX primary cartridge, Fixed setting, 1.5:1 pilot ratio, standard capacity counterbalance valve)
Port and Material Designation
  • Standard Options
  • I
    Ports A, B, P, T — SAE 6; Mtg Holes — .312 - 18UNC x .56 DP; Aluminum
  • I/S
    Ports A, B, P, T — SAE 6; Mtg Holes — .312 - 18UNC x .56 DP; Iron
  • U
    Ports A, B, P, T — 3/8" BSPP; Mtg Holes — M8 x 1.25-6H x .56 DP; Aluminum
  • U/S
    Ports A, B, P, T — 3/8" BSPP; Mtg Holes — M8 x 1.25-6H x .56 DP; Iron
Model: XCCL

Electro-proportional controlled cushion lock assembly

Capacity:

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Model

XCCLLHNAI

Control
  • Standard Options
  • C
    Tamper Resistant - Factory Set
  • L
    Standard Screw Adjustment
  • Additional Options
  • R
    Lockwired Screw Adjustment
Functional Setting Range
  • Standard Options
  • A
    1000 - 4000 psi w/4 psi Check (70 - 280 bar w/ 0,3 bar Check), 3000 psi (210 bar) Standard Setting
  • B
    400 - 1500 psi w/4 psi Check (28 - 105 bar w/ 0,3 bar Check), 1000 psi (70 bar) Standard Setting
  • H
    1000 - 4000 psi w/25 psi Check (70 - 280 bar w/ 1,7 bar Check), 3000 psi (210 bar) Standard Setting
  • I
    400 - 1500 psi w/25 psi Check (28 - 105 bar w/ 1,7 bar Check), 1000 psi (70 bar) Standard Setting
Seal Material
  • Standard Options
  • N
    Buna-N
  • V
    Viton
Pilot Ratio (4th Letter) of Primary Cartridge
  • Standard Options
  • A
    3:1 (with CBCA primary cartridge, 3:1 pilot ratio, standard capacity counterbalance valve)
  • B
    1.5:1 (with CBCB primary cartridge, 1.5:1 pilot ratio, standard capacity counterbalance valve)
  • G
    4.5:1 (with CBCG primary cartridge, 4.5:1 pilot ratio, standard capacity counterbalance valve)
  • A
    3:1 (with CBCAX primary cartridge, Fixed setting, 3:1 pilot ratio, standard capacity counterbalance valve)
  • G
    4.5:1 (with CBCGX primary cartridge, Fixed setting, 4.5:1 pilot ratio, standard capacity counterbalance valve)
  • B
    1.5:1 (with CBCBX primary cartridge, Fixed setting, 1.5:1 pilot ratio, standard capacity counterbalance valve)
Port and Material Designation
  • Standard Options
  • I
    Ports A, B, P, T — SAE 6; Mtg Holes — .312 - 18UNC x .56 DP; Aluminum
  • I/S
    Ports A, B, P, T — SAE 6; Mtg Holes — .312 - 18UNC x .56 DP; Iron
  • U
    Ports A, B, P, T — 3/8" BSPP; Mtg Holes — M8 x 1.25-6H x .56 DP; Aluminum
  • U/S
    Ports A, B, P, T — 3/8" BSPP; Mtg Holes — M8 x 1.25-6H x .56 DP; Iron
See CAD Files tab below to request images.
Function
Function image

Technical specifications

  • Modifiers
    Ports
    • I, I/S
      Ports A, B, P, T: SAE 6; Mtg Holes: .312 - 18UNC x .56 DP;
    • U, U/S
      Ports A, B, P, T: 3/8" BSPP; Mtg Holes: M8 x 1.25-6H x .56 DP;
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    This valve assembly provides independent, proportional meter-in speed control for ports A and B, overrunning load control, and load-port relief protection. It also supplies make-up oil and flushes hot dirty oil out of the actuator. All oil coming out of the actuator returns to tank through port T.

    • The counterbalance valves should be set at 1.3 times the maximum load induced pressure.
    • The term cushion in the name Cushion Lock is a misnomer. Because the counterbalance valves play a dual role as load controls and work port reliefs they must be set too high to provide any real cushion. Deceleration can only be achieved by ramping down the input flow.
    • This assembly is ideal for applications with long lines to the actuators. Mounting the assembly close to an actuator ensures that cool, clean oil will be supplied to the actuator and that the hot, dirty oil will go out the T port to the tank
    • Low pilot ratio counterbalance valves (3:1 vrs 10:1) may be necessary to generate enough pressure to release a brake.
    • Hydraulic motors leak. Therefore a mechanical brake is recommended to positively lock any stopped live load.
    • Includes mounting threads 8-32 UNC-2B x .28 (7 mm) deep for optional XMD driver. When not configured with cartridge, the XMD driver must be purchased separately. A harness will be required.
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    • Body Type
      Line mount
    • Capacity
      9 gpm

    Model CAD Files

    Click the link of the file format you want to download.

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    • Why doesn't Sun anodize their aluminum bodies?
    • How big is a drop of hydraulic oil?  
    • Direct acting or pilot operated - what do I use?
      • Back to Top
    • When configured with the XMD driver, a wiring harness is required to connect the XMD to the system and must be purchased separately. Sun offers a selection of harnesses and are available under Electronics | I/O Modules | Accessories.
    • Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified.
    • For detailed information regarding the cartridges contained in this assembly, click on the models codes shown in the Included Components tab.
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