Construction Attachments Inc. Hydraulic Breaker for 4,000-13,000 LBS Compact Excavators

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Designed for aiding in construction and demolition of concrete structures, rocks, asphalt, etc.

  • Constructed of high strength steel to provide structural durability
  • Silence kit ensures noise protection, prevents dust and debris from entering breaker housing
  • Cushion Damper provides protection to the host machine
  • Auto Stop (Anti Blank Fire) System ensures less problem of the components and longer life of the breaker


Standard equipment includes:

(1) base breaker unit
(1) mounting bracket
(1) chisel point
(1) tool kit
(1) nitrogen gauge for checking pressure
(1) operators manual

  • Specify make and model of host machine when placing order
  • Weights may vary based on selected hitch styles

Underwater Kits for Hydraulic Breakers Are Available

Warning Read All Details

  • Use of unsuitable hydraulic couplers or hoses can cause damage to internal components of breaker.
  • Dry firing hydraulic breaker can result in damage to internal components of breaker and host machine.
  • Chisel paste must be used with hydraulic breakers, using high temperature grease as a substitution for chisel paste will cause damage to components of breaker.
  • Consult with appropriately trained hydraulic specialists prior to placing breaker into service.
  • Read operators manual before use.
  • Check hydraulic flow and pressure before use.
  • Instruct owner/operator on proper use of hydraulic breaker before delivery of machine or product.


Model 1BR550B-EX , 1BR850B-EX
Item No. CAL550B , CAL850B
Energy Class (FT-LBS) 550-850
Blows Per Minute 380-1,100
Weight (LBS) 510-728
Machine Weight Class (LBS) 4,000-13,000 LBS
System Hydraulic Pressure Requirement (PSI) 1,595-2,393
Oil Flow Requirement (GPM) 7.9-20.32
Tool Diameter (IN) 2.76
Host Machine


Compact Excavators

Bobcat 325, 328, 329, E26
Case CX27B
Caterpillar 301.6, 301.8C, 302.5C, 302.7D
Gehl GE272, GE292, GE342, GE362, 303, 353, 373, 383Z, Z27
Hitachi EX27U, ZX27U-2
Hyundai R27Z-9
IHI 28J, 20NX, 30NX
JCB 803, 8025ZTS, 8030ZTS
John Deere 17ZTS, 27ZTS, 27D
Kobelco 25SR-2, 30SR-2, 35SR-2, SK30, SK35, SK27R
Komatsu PC20MRx-1, PC27R-8, PC27R-8E, PC30MRx-1, PC35R-8, PC35R-8E, PC18 MR-2, PC20 MR-2, PC27 MR-2
Kubota KX61-2, KX71-3, KX91-2, U25, U35, KX121-3
Mustang 270Z
New Holland E27, E30, E35, EC35, EH50
Schaeff HR13, HR14, HR16
Takeuchi TB125, TB135, TB228
Volvo EC-30, EC-35, ECR-28, ECR-38
Yanmar B-27, B-37, VIO27, VIO35


Compact Excavators

Bobcat 325, 328, 329, 331, 331 E, 334, 335, 337, 341, 430, 435H, 442, E-32, E-35
Case CX31B, CX36B, CX50B, CX55
Caterpillar 302.5C, 303.5C, 303C-CR, 304.5
Doosan SS55-VP
Gehl GE502, 383Z, 503Z, 603, 753Z, Z27, Z35
Hitachi EX27U, EX35U, EX5OU, ZX27U-2, ZX35U-2
Hyundai R35Z-9
IHI 28J, 53J, 30NX, 35NX, 45NX, 55VX
JCB 804 Super, 8030 ZTS, 8035 ZTS, 8040 ZTS, 8045 ZTS
John Deere 17ZTS, 27ZTS, 35ZTX, 50D, 35D
Kobelco 25SR-2, 30SR-2, 35SR-2, 45SR-2, 5R50, SK50
Komatsu PC30MRx-1, PC35R-8, PC35R-8E, PC40MRx-1, PC45R-8, PC45R-8E, PC35 MR-2, PC40 MR-2, PC50 MR-2, PC58 UU-3
Kubota KX121-2, KX161-2, U45, KX71-3, KX91-3, KX121-3, KX161-3, U35
Mustang 350Z
New Holland E35, EC35, EC45, E50
Schaeff HR16, HR18
Takeuchi TB125, TB135, TB145, TB235, TB138FR
Volvo EC45, EC55, EC55B, ECR28, ECR38
Yanmar B-50, VIO27, VIO35

Contact us if your host machine is not listed.

OEM Colors Available Yes
Designed For Use aggressive applications, construction, road construction, quarries, demolition, underwater use, compacting, tunneling, sloping, trenching
Suitable For Compact Excavators