Caterpillar CR35
Maintenance schedule, common problems & OEM parts breakdown
The Cat CR35 is a hydraulic concrete crusher, an excavator-mounted demolition work tool with no engine, cab, or undercarriage of its own — it runs entirely off the carrier's hydraulic system. Per the Caterpillar factory spec sheet for this attachment family, it has an approximate service weight of 4,200 kg (9,300 lb) excluding its mounting bracket, and it is built to demolish reinforced concrete structures such as bridge decks, parking garages, columns, and abutments up to about 1.5 m (5 ft) thick, cutting embedded rebar in the same pass instead of requiring separate torching. It mounts on Cat 345B and 350 excavators, machines in the 35-40 tonne class, on a stick with a working range of roughly 2.9 to 4.05 m (9'6" to 13'3") depending on the host machine.
The CR35 sits in the middle of Caterpillar's CR-series concrete crusher lineup, sized between the CR28 and the CR50 and scaled to match progressively larger excavators rather than representing successive model-year generations. No distinct earlier or later CR35 generation is documented; Caterpillar issued it as a single fixed specification, identified in parts records by PIN prefix 5BW. Caterpillar's current demolition-attachment catalog has since shifted to the MP Multi-Processor platform with interchangeable jaw sets, so the CR35 represents an earlier, single-purpose crusher design rather than a lineage that continued under a new name. It still works in scrap and demolition fleets running older 345B- and 350-class excavators, and its parts demand today centers on wear items — jaw teeth, rebar cutters, pins, bushings, and seals — rather than whole-unit replacement.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar CR35 specifications
Engine
| Power source | Hydraulically powered attachment with no onboard engine. Power and hydraulic flow are supplied by the carrier excavator. |
Weights
| Service weight (excl. mounting bracket) | 4200 kg (9,300 lb) |
| Recommended carrier operating weight class | Approx. 35 000 kg (77,000 lb), matched to Cat 345B/350 class excavators |
Dimensions
| Overall length (excl. mounting bracket) | 2510 mm (98.8 in) |
| Jaw opening, maximum | 1190 mm (46.8 in) |
| Jaw depth | 830 mm (32.6 in) |
| Rebar cutter blade size | 500 mm total, 2 x 250 mm (19.6 in total, 2 x 9.8 in) length; 280 mm (11 in) depth |
Performance
| Maximum crushing force, tooth tip | 833 kN (93.6 short tons) |
| Maximum crushing force, middle tooth | 1128 kN (127 short tons) |
| Maximum shearing force, cutting center | 4787 kN (538 short tons) |
| Cycle time (jaw open/close) | 6.2 sec at maximum oil flow. Varies with carrier configuration and operating conditions. |
| Rotation | Continuous 360 degree hydraulic rotation |
| Carrier stick (reach) range | 345B: 2.9-3.9 m (9'6"-12'10"); 350: 3.1-4.05 m (10'2"-13'3") |
Service capacities (summary)
| Fuel, engine oil, coolant | Not applicable. CR35 has no onboard engine; all power is drawn from the carrier excavator. |
| Hydraulic cylinder flow requirement | Max. 350 L/min (93 gpm) |
| Hydraulic cylinder working pressure | Max. 34 300 kPa (4,980 psi) |
| Rotation circuit flow requirement | 20 L/min (5 gpm) |
| Rotation circuit working pressure | 17 200 kPa (2,465 psi) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
CR35 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine, cooling system, fuel tank, transmission/powertrain, final drives, axles/differentials | Not applicable | The CR35 is a hydraulic concrete crusher work tool mounted on a host excavator; it carries no engine, cooling system, fuel tank, transmission, final drive, or axle of its own. These systems and their fluid charts belong to the carrier machine, not the crusher, and the CR35 OMM does not list them. |
| Hydraulic system (crusher cylinder and rotator circuit) | No dedicated onboard reservoir or fluid capacity; the tool has no tank of its own and runs on flow and pressure drawn from the host excavator's hydraulic system through auxiliary lines | Fluid must match the spec used in the host excavator's hydraulic tank per that machine's own OMM, typically Cat HYDO Advanced 10/30 or Cat BIO HYDO Advanced (viscosity graded to ambient temperature per the carrier's climate chart). The CR35 OMM does not call out a separate crusher-specific hydraulic fluid or capacity; oil cleanliness and cooling are governed entirely by the carrier circuit. |
| Grease points (rotator/swivel bearing, cylinder pins, jaw pivot pins) | No fill volume specified; lubricate each fitting per the scheduled service interval until fresh grease purges from the joint | Cat Multipurpose Grease (NLGI 2) for general pin and bushing points, or Cat Extreme Application Grease / Cat Ultra 5 Moly (NLGI 1 or 2, calcium sulfonate complex with moly) for the higher-load rotator bearing and swivel joint. No separate winter/summer grade is called out; the moly-fortified grease covers the full ambient range Caterpillar lists for its work-tool lube points. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar CR35 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
Servicing the CR35 beyond the schedule
Predictive Maintenance & Fluid Analysis
Since it has no engine, sampling should focus on the excavator's hydraulic oil, since the CR35's crushing circuit (350 L/min at 34,300 kPa) and rotation circuit (20 L/min at 17,200 kPa) share the carrier's tank. Watch for metal particulate spikes after heavy rebar-cutting duty cycles, which point to accelerated wear on the cylinder rod bushing or swivel bearings. Track relief-valve response and accumulator precharge trend line; a slow or spongy jaw close cycle (baseline 6.2 seconds) often precedes a valve or accumulator fault before a hard failure occurs.
Corrective & Common Repairs
Most CR35 downtime traces to jaw-tooth and rebar-cutter wear from rebar contact, not hydraulics. Build up or replace the bolt/weld-on crushing teeth once the alloy edge rounds off, and index the rebar cutters onto their next fresh edge before the throat loses cutting bite. Cylinder rod seal weep after high-cycle demolition work is common; reseal before scoring reaches the chrome. Crushing-arm pin and bushing knock indicates play beyond tolerance; replace the pin/bushing pair together rather than one side.
Overhaul & Rebuild Points
A full CR35 overhaul centers on the rod-through cylinder, the rotator ring gear, and the crushing-arm pin bores. Rebuild the cylinder when rod scoring or internal bypass slows jaw closing; the rod-through oil path means rod wear affects sealing on both sides of the piston. Line-bore worn arm and mounting-bracket pin bores and fit oversize pins and bushings rather than shimming. Re-torque or renew the slewing-ring bolts and inspect the ring gear teeth for pitting; rotator drag or backlash signals ring gear wear needing replacement.
Seasonal & Environmental Servicing
Cold-weather starts stiffen the rotator and cylinder seals; cycle the jaw and rotation function slowly before full-force crushing to warm the oil trapped in the crusher's own lines. Concrete dust and rebar swarf pack into pin bosses and the ring gear teeth; clean and re-grease more often on dusty demolition sites to keep grit from scoring the pins. In wet or coastal demolition work, check exposed cylinder rod and swivel bearing surfaces for corrosion pitting, since the rod-through design leaves the rod exposed at full jaw extension.
CR35 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| CID 1180 | Auxiliary/work-tool hydraulic solenoid #1 circuit on the carrier excavator's machine ECM — the first auxiliary valve solenoid metering oil flow to a mounted attachment such as a crusher, hammer, or shear. | Open or shorted wiring to the solenoid, a failed solenoid coil, or a loose connector at the auxiliary valve bank, often surfacing when a high-flow tool is switched on. | Inspect the solenoid connector and harness for damage or corrosion, check coil resistance against spec, then clear and retest before replacing the valve. |
| CID 1181 | Auxiliary/work-tool hydraulic solenoid #2 circuit — the paired auxiliary valve solenoid, typically covering the opposite flow direction or a second tool function on the excavator's aux circuit. | Same wiring or coil failure modes as the #1 solenoid circuit, on the paired solenoid. | Inspect wiring and connector, test coil resistance, and confirm proportional valve response with Cat ET before condemning the solenoid. |
| CID 1189 | Auxiliary hydraulics control lever/joystick input circuit — reports the signal from the control used to command the auxiliary (work-tool) hydraulic function. | Faulty lever position sensor, worn detent, or a signal-wiring fault between the lever and the machine ECM. | Cycle the lever while watching the sensor signal on Cat ET, check wiring continuity and connector condition, then replace the lever assembly if the fault persists. |
| CID 1942 | High-pressure tool detection switch circuit — used by the excavator ECM to sense that a high-flow/high-pressure work tool such as a hammer or crusher is connected, which changes how the aux circuit is metered. | Switch failure, damaged wiring at the tool-detection circuit, or a poor connection at the quick-coupler interface. | Verify switch continuity and connector integrity, confirm the ECM registers tool presence on Cat ET, and repair wiring before replacing the switch. |
| CID 2280 | Crushing-hammer oil-return routing solenoid valve — controls whether return oil from a hammer- or crusher-type attachment routes through the tank or back through the auxiliary circuit. | Solenoid coil failure or a wiring fault on this return-routing valve, which tends to surface specifically when a crusher or hammer tool is mounted. | Check coil resistance and wiring, confirm the valve shifts under command on Cat ET, and replace the solenoid if it fails to actuate. |
| CID 1806 | Work tool/magnet selector switch circuit — reports the operator's selector-switch input used to choose which mounted tool function is active. | Worn or failed selector switch, or a wiring fault between the switch and the machine ECM. | Test switch continuity in each position, inspect wiring for damage, and replace the switch if it fails to register a clean signal. |
| CID 2211/2212 | Auxiliary valve port A/port B solenoid circuit — controls flow direction through an added auxiliary valve section fitted on excavators configured for multi-function work-tool circuits. | Solenoid or wiring fault on the named port; more likely on machines with extra auxiliary valve sections added for tool changers or multiple attachments. | Check port solenoid wiring and coil resistance, confirm the valve spool shifts on command, and replace the solenoid if unresponsive. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
CR35 attachments & work tools
Carrier / mounting compatibility
The CR35 concrete crusher is factory-matched to the 345B and 350 hydraulic excavator class, in the roughly 35,000 kg (77,000 lb) operating-weight bracket. It mounts to the stick through a machine-specific pin-on bracket (sold and weighed separately from the tool itself) rather than a universal quick coupler, since the tool carries its own top-mounted hydraulic rotator.
Stick / reach requirement
Recommended stick length range is about 2.9-3.9 m (9'6"-12'10") on a 345B and 3.1-4.05 m (10'2"-13'3") on a 350; exact usable range varies by boom and counterweight configuration on the host excavator.
Jaw and tooth / rebar-cutter configuration
Each of the two crushing arms carries two bolted/welded alloy-steel crushing teeth that can be built up or replaced, plus two rotatable-edge rebar cutter knives with four usable cutting edges each before replacement. Maximum jaw opening is about 1190 mm (46.8 in) with a jaw depth of about 830 mm (32.6 in), sized for reinforced sections up to roughly 1.5 m (5 ft) thick or in diameter.
Hydraulic flow and pressure requirements
The crushing-cylinder circuit calls for roughly 350 L/min (93 gpm) maximum oil flow at about 34,300 kPa (4980 psi) maximum working pressure. A separate, lower-flow circuit of about 20 L/min (5 gpm) at about 17,200 kPa (2465 psi) drives the continuous 360-degree rotator.
Rotator and guarding options
A large-diameter top-mounted 360-degree rotator is standard, protected by a pressure relief valve and small accumulators to keep excessive hydraulic pressure from reaching the excavator boom/stick. Falling-object protective guarding is offered as a dealer-fitted option for overhead demolition work where debris can drop onto the cab.
Size-class family position
The CR35 sits between the CR28 (325B/330B/345B/350 class) and the CR50 (375 class, including a general-purpose-boom variant) in Caterpillar's legacy concrete-crusher lineup, sharing the same cutter/tooth/rotator design scaled to different crushing-force and jaw-opening classes; approximate service weight excluding mounting bracket is about 4200 kg (9300 lb).
All CR35 assemblies by section
Every catalogued assembly group for the Caterpillar CR35. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Frame And Body
145-4026 Housing Gp-Crusher
| 13***24 | Screw-Flat Head | 12 |
| 14***63 | Lockwasher | 12 |
| 14***07 | Plate | 4 |
145-4007 Housing Gp-Crusher
| 14***63 | Lockwasher | 12 |
| 14***86 | Screw-Flat Head | 12 |
| 14***79 | Bolt; (M20x2.5x100-mm) | 30 |
160-9067 Housing Gp-Crusher
| 14***63 | Lockwasher | 12 |
| 14***86 | Screw-Flat Head | 12 |
| 14***64 | Gear & Bearing Group | 1 |
160-9070 Housing Gp-Crusher
| 13***24 | Screw-Flat Head | 20 |
| 14***63 | Lockwasher | 20 |
| 14***79 | Bolt; (M20x2.5x100-mm) | 30 |
160-9068 Housing Gp-Crusher
| 14***63 | Lockwasher | 12 |
| 14***86 | Screw-Flat Head | 12 |
| 14***79 | Bolt; (M20x2.5x100-mm) | 30 |
160-9069 Housing Gp-Crusher
| 13***24 | Screw-Flat Head | 12 |
| 14***63 | Lockwasher | 12 |
| 14***79 | Bolt; (M20x2.5x100-mm) | 30 |
145-6438 Mounting Gp-Rotator Motor
| 14***63 | Lockwasher | 1 |
| 14***93 | Bolt; (M12x1.75x40-mm) | 1 |
| 14***80 | Gear-Planetary | 1 |
160-9323 Mounting Gp-Rotator Motor
| 09***74 | Bolt-Socket Head; (M12x1.75x65-mm) | 4 |
| 14***93 | Plate-Mounting | 1 |
| 15***18 | Lockwasher | 4 |
160-9324 Mounting Gp-Rotator Motor
| 09***74 | Bolt-Socket Head; (M12x1.75x65-mm) | 4 |
| 15***19 | Lockwasher | 8 |
| 16***75 | Plate-Mounting | 1 |
Hydraulic System
145-3666 Cylinder & Lines Gp-Crusher
| 14***66 | Cylinder & Lines Group-Crusher | 1 |
| 14***24 | Cylinder Group-Hydraulic | 2 |
| 14***30 | Mounting Group-Cylinder | 1 |
160-9108 Cylinder & Lines Gp-Crusher
| 14***08 | Mounting Group-Cylinder | 1 |
| 15***19 | Cylinder Group-Hydraulic | 2 |
| 16***98 | Lines Group-Cylinder | 1 |
160-9107 Cylinder & Lines Gp-Crusher
| 14***30 | Mounting Group-Cylinder | 1 |
| 16***45 | Cylinder Group-Hydraulic | 2 |
| 16***97 | Lines Group-Cylinder | 1 |
160-9109 Cylinder & Lines Gp-Crusher
| 14***31 | Mounting Group-Cylinder | 1 |
| 16***47 | Cylinder Group-Hydraulic | 2 |
| 16***99 | Lines Group-Cylinder | 1 |
145-4020 Cylinder & Lines Gp-Crusher
| 14***08 | Mounting Group-Cylinder | 1 |
| 14***11 | Lines Group-Cylinder | 1 |
| 14***20 | Cylinder & Lines Group-Crusher | 1 |
160-9106 Cylinder & Lines Gp-Crusher
| 14***89 | Mounting Group-Cylinder | 1 |
| 15***93 | Cylinder Group-Hydraulic | 2 |
| 16***96 | Lines Group-Cylinder | 1 |
160-8245 Cylinder Gp-Hydraulic
| 03***25 | Ring-Backup | 2 |
| 08***48 | Ring | 1 |
| 09***31 | Seal-O-Ring | 1 |
155-4019 Cylinder Gp-Hydraulic
| 03***25 | Ring-Backup | 2 |
| 09***33 | Seal-O-Ring; (Id=209.30mm) | 1 |
| 12***17 | Bolt-Socket Head; (M24x3x70-mm) | 12 |
145-3724 Cylinder Gp-Hydraulic
| 09***77 | Setscrew-Socket | 1 |
| 10***19 | Ring-Retaining | 4 |
| 14***45 | Bearing | 2 |
145-4039 Cylinder Gp-Hydraulic
| 09***13 | Ring | 4 |
| 09***77 | Setscrew-Socket | 1 |
| 14***84 | Bolt-Socket Head; (M20x2.5x110-mm) | 20 |
160-8247 Cylinder Gp-Hydraulic
| 11***65 | Ring-Wear | 2 |
| 14***23 | Dowel | 1 |
| 14***33 | Drive-Hex Socket | 1 |
158-7793 Cylinder Gp-Hydraulic
| 03***25 | Ring-Backup | 2 |
| 08***91 | Ring-Backup | 1 |
| 09***28 | Seal-O-Ring | 1 |
145-4011 Lines Gp-Cylinder
| 09***85 | Bolt-Socket Head; (M14x2x30-mm) | 8 |
| 12***88 | Flange-Split | 16 |
| 12***22 | Bolt; (M14x2x50-mm) | 8 |
160-9098 Lines Gp-Cylinder
| 09***85 | Bolt-Socket Head; (M14x2x30-mm) | 8 |
| 14***60 | Fitting | 4 |
| 14***25 | Hose As | 2 |
160-9096 Lines Gp-Cylinder
| 14***60 | Fitting | 4 |
| 14***54 | Hose As | 2 |
| 15***82 | Swivel Group | 1 |
160-9099 Lines Gp-Cylinder
| 09***85 | Bolt-Socket Head; (M14x2x30-mm) | 8 |
| 14***60 | Fitting | 4 |
| 14***25 | Hose As | 2 |
160-9097 Lines Gp-Cylinder
| 14***60 | Fitting | 4 |
| 14***25 | Hose As | 2 |
| 15***82 | Swivel Group | 1 |
145-3733 Lines Gp-Cylinder
| 12***88 | Flange-Split | 20 |
| 14***60 | Fitting | 4 |
| 14***64 | Hose As | 1 |
160-6669 Lines Gp-Motor
| 15***94 | Adapter As | 6 |
| 15***44 | Seal | 1 |
| 16***66 | Hose As | 2 |
145-6494 Lines Gp-Motor
| 14***56 | Valve Group-Pressure Control | 1 |
| 14***61 | Accumulator | 2 |
| 14***25 | Plug | 3 |
145-6439 Lines Gp-Motor
| 14***56 | Valve Group-Pressure Control | 1 |
| 14***61 | Accumulator | 2 |
| 14***25 | Plug | 3 |
160-6668 Lines Gp-Motor
| 11***30 | Hose As | 2 |
| 15***94 | Adapter As | 6 |
| 15***44 | Seal | 1 |
160-6670 Lines Gp-Motor
| 11***23 | Hose As | 2 |
| 15***94 | Adapter As | 6 |
| 15***44 | Seal | 1 |
160-9713 Motor & Lines Gp-Rotator
| 16***68 | Lines Group-Motor | 1 |
| 16***22 | Motor Group-Gerotor | 1 |
| 16***23 | Mounting Group-Rotator Motor | 1 |
160-9714 Motor & Lines Gp-Rotator
| 16***69 | Lines Group-Motor | 1 |
| 16***22 | Motor Group-Gerotor | 1 |
| 16***24 | Mounting Group-Rotator Motor | 1 |
145-3667 Motor & Lines Gp-Rotator
| 14***67 | Motor & Lines Group-Rotator | 1 |
| 14***53 | Motor Group-Gerotor | 1 |
| 14***38 | Mounting Group-Rotator Motor | 1 |
145-4021 Motor & Lines Gp-Rotator
| 14***21 | Motor & Lines Group-Rotator | 1 |
| 14***53 | Motor Group-Gerotor | 1 |
| 14***38 | Mounting Group-Rotator Motor | 1 |
160-9715 Motor & Lines Gp-Rotator
| 16***70 | Lines Group-Motor | 1 |
| 16***22 | Motor Group-Gerotor | 1 |
| 16***24 | Mounting Group-Rotator Motor | 1 |
145-6153 Motor Gp-Gerotor
| 14***53 | Motor Group-Gerotor | 1 |
| 14***54 | Key | 1 |
| 14***55 | Kit-Seal | 1 |
160-9122 Motor Gp-Gerotor
| 09***66 | Bolt; (M8x1.25x75-mm) | 4 |
| 16***22 | Motor Group-Gerotor | 1 |
| 16***82 | Motor Group-Gerotor | 1 |
164-7282 Motor Gp-Gerotor
| 16***82 | Motor Group-Gerotor | 1 |
| 16***59 | Key-Square | 1 |
| 16***24 | Nut-Hex; (1-1/4-18 Thd) | 1 |
145-5389 Mounting Gp-Cylinder
| 14***42 | Plate | 4 |
| 14***38 | Pin As | 2 |
| 14***31 | Spacer; (118mm Dia X 9.5mm Thk) | 8 |
145-3730 Mounting Gp-Cylinder
| 14***42 | Plate | 4 |
| 14***49 | Pin As | 2 |
| 14***19 | Pin As | 2 |
145-5731 Mounting Gp-Cylinder
| 14***31 | Plate | 4 |
| 14***31 | Mounting Group-Cylinder | 1 |
| 14***32 | Pin As | 2 |
145-4008 Mounting Gp-Cylinder
| 14***07 | Plate | 4 |
| 14***08 | Mounting Group-Cylinder | 1 |
| 14***09 | Pin As | 2 |
144-1056 Valve Gp-Pressure Control
| 14***56 | Valve Group-Pressure Control | 1 |
| 14***88 | Connector | 2 |
| 17***54 | Valve Group-Relief | 2 |
179-1254 Valve Gp-Relief
| 17***54 | Valve Group-Relief | 1 |
| 6V***06 | Seal-Bonded | 1 |
| 6V***80 | Seal-O-Ring; (20.35mm Id) | 1 |
Service Equipment And Supplies
161-2660 Plate & Film Gp
| 10***89 | Film; (Stripe) (82cm) | 0 |
| 10***45 | Film-Identification; (Cat) | 2 |
| 14***36 | Film-Warning; (Flying Debris) | 2 |
161-2658 Plate & Film Gp
| 10***89 | Film; (Stripe) (82cm) | 0 |
| 14***36 | Film-Warning; (Flying Debris) | 2 |
| 14***69 | Film-Warning; (Alert) | 2 |
161-2661 Plate & Film Gp
| 10***89 | Film; (Stripe) (82cm) | 0 |
| 14***36 | Film-Warning; (Flying Debris) | 2 |
| 14***69 | Film-Warning; (Alert) | 2 |
161-2659 Plate & Film Gp
| 10***89 | Film; (Stripe) (82cm) | 0 |
| 14***36 | Film-Warning; (Flying Debris) | 2 |
| 14***69 | Film-Warning; (Alert) | 2 |
Work Tool Arrangement
145-4077 Crusher Ar-Hydraulic
| 14***20 | Cylinder & Lines Group-Crusher | 1 |
| 14***21 | Motor & Lines Group-Rotator | 1 |
| 14***23 | Tooth & Cutting Edge Group | 1 |
145-5510 Crusher Ar-Hydraulic
| 14***10 | Crusher Ar-Hydraulic | 1 |
| 14***12 | Tooth & Cutting Edge Group | 1 |
| 16***67 | Housing Group-Crusher | 1 |
145-5772 Crusher Ar-Hydraulic
| 14***72 | Crusher Ar-Hydraulic | 1 |
| 14***74 | Tooth & Cutting Edge Group | 1 |
| 16***70 | Housing Group-Crusher | 1 |
145-4006 Crusher Ar-Hydraulic
| 14***66 | Cylinder & Lines Group-Crusher | 1 |
| 14***67 | Motor & Lines Group-Rotator | 1 |
| 14***06 | Crusher Ar-Hydraulic | 1 |
Work Tools
208-5144 Bracket Gp-Mounting
| 20***43 | Bracket As | 1 |
| 20***44 | Bracket Group-Mounting | 1 |
| 7X***82 | Bolt; (M30x3.5x110-mm) | 12 |
145-5774 Tooth & Cutting Edge Gp
| 14***15 | Screw-Flat Head; (M20x2.5x100-mm) | 12 |
| 14***84 | Tooth-Crushing | 4 |
| 14***78 | Lockwasher | 12 |
145-4010 Tooth & Cutting Edge Gp
| 14***31 | Bolt; (M16x2x70-mm) | 8 |
| 14***37 | Shim; (0.3-mm Thk) | 2 |
| 14***38 | Shim; (.5mm Thk) | 1 |
145-4023 Tooth & Cutting Edge Gp
| 14***35 | Tooth-Crushing | 4 |
| 14***23 | Tooth & Cutting Edge Group | 1 |
| 14***75 | Bolt; (M20x2.5x75-Thd) | 12 |
145-5512 Tooth & Cutting Edge Gp
| 14***31 | Bolt; (M16x2x70-mm) | 8 |
| 14***12 | Tooth & Cutting Edge Group | 1 |
| 14***16 | Crushing Tooth | 4 |
CR35 serial number reference
The CR35 carries its own PIN/serial plate mounted on the crusher housing itself (near the rotator or mounting-bracket end), separate from and independent of the host excavator's own PIN plate on the machine frame or cab - never read the carrier machine's PIN for this attachment. On this generation of Cat work tool the identification follows the classic 8-character format: a 3-character prefix identifying the specific tool series (5BW for CR35) followed by a 5-digit sequential unit number, e.g. 5BW00123.
| Prefix | Identifies | Notes |
|---|---|---|
| 5BW | CR35 hydraulic concrete/demolition crusher, standard production series (mounts on Cat 345B and 350 excavator sticks) | Only PIN series documented for the CR35 work tool itself; no separate sub-variant or later B-suffix generation turned up in available literature. Treat as a single production run and confirm the exact effectivity break with your dealer before ordering parts by serial. |
Frequently asked questions
What carrier excavator does the Cat CR35 fit?
The CR35 is matched to Cat 345B and 350 hydraulic excavators, machines in the 35-40 tonne class. It mounts stick-end with a working range of about 2.9-4.05 m (9'6"-13'3") depending on the carrier model.
What is the CR35's operating weight?
The CR35 has an approximate service weight of 4,200 kg (9,300 lb), excluding its mounting bracket.
What crushing force does the CR35 produce?
The CR35 develops a maximum crushing force of about 833 kN (93.6 st) at the tip and roughly 1,128 kN (127 st) at the middle tooth, driven by a hydraulic cylinder circuit flowing up to 350 L/min at up to 34,300 kPa (4,980 psi).
What CR35 owners discuss
What wears fastest on the CR35's jaw — the crushing teeth or the rebar cutters?
The rotator feels sluggish or hesitates when I swing the jaw under load — is that normal?
Where do pins and bushings wear first on this style of crusher?
What hose or seal failures show up most on jaw crushers like this?
What carrier does the CR35 actually need, and what happens if it's mismatched?
What should I check when buying a used CR35?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific CR35 part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.