Caterpillar CR50
Maintenance schedule, common problems & OEM parts breakdown
The Cat CR50 is a hydraulic concrete crusher and pulverizer work tool, not a self-propelled machine. It is the largest unit in Caterpillar's original CR-series demolition attachment line, which also includes the smaller CR20, CR28, and CR35. The CR50 carries no engine, no undercarriage, and no cooling, fuel, or transmission system of its own; every function runs off the auxiliary hydraulic circuit of its host carrier. Caterpillar matched it exclusively to 375-class excavators fitted with a standard stick or GP boom, at stick lengths from about 2.9 to 5.5 m (9'6" to 18'1"). Service weight, tool only and excluding the mounting bracket, is approximately 7,000 kg (15,450 lb), with an overall length near 3.44 m (135 in) and a jaw opening around 1,600-1,620 mm (63-64.8 in).
Within the CR family the CR50 sits at the top of the range: the largest jaw opening and the highest crushing and shearing forces of the four sizes, with tip crushing force near 1,628 kN (183 st), middle-tooth force near 2,100 kN (236 st), and peak shearing force at the cutter center up to about 6,857 kN (770 st). That force lets it break reinforced concrete sections up to roughly 150 cm (5 ft) thick, embedded rebar included, without torching. Records point to a single production generation with no documented direct successor model. Even so, the CR50 still has a place in the used and parts market: Caterpillar's dealer network continues to support it with pin, bushing, hose, and jaw-tooth service parts, which keeps well-maintained units viable for demolition contractors running 375-class carriers long after the tool's original introduction.
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 CR50 specifications
Engine
| Power source | No onboard engine. Hydraulic attachment powered off the carrier excavator's implement circuit. |
| Matched carrier | Cat 375 excavator, standard-stick and GP (general purpose) boom arrangements. |
| Hydraulic cylinder flow (max) | 579 L/min (153 gpm). |
| Hydraulic cylinder pressure (max) | 34 300 kPa (4,980 psi). |
| Rotation circuit flow | 20 L/min (5 gpm). |
| Rotation circuit pressure (max) | 17 200 kPa (2,465 psi). |
Weights
| Service weight (excl. mounting bracket) | 7 000 kg (15,450 lb). |
| Matched carrier operating weight | Approximately 50 000 kg (110,000 lb) class. |
Dimensions
| Overall length (excl. mounting bracket) | 3 440 mm (135.4 in). |
| Jaw opening, maximum | 1 600 mm (63 in) per the spec table; the factory cutter-throat diagram shows 1 620 mm (64.8 in) for the same opening — treat as 1 600-1 620 mm (63-64.8 in). |
| Jaw depth | 880 mm (34.6 in). |
| Crushing-tooth width per arm | 700 mm total width across the arm (28 in total). |
| Cutter offset dimension | 260 mm (10.4 in). |
Performance
| Maximum crushing force, tip | 1 628 kN (183 short tons). |
| Maximum crushing force, middle tooth | 2 100 kN (236 short tons). |
| Maximum shearing force, cutting center | 6 857 kN (770 short tons), for cutting rebar and light steel profiles. |
| Cycle time | 10.8 seconds per open-close cycle. Varies with carrier configuration and operating conditions. |
| Rotation | Continuous 360°. A relief valve and accumulators guard the carrier's stick and boom from excess hydraulic pressure. |
| Reach range on matched carrier | 2.9-5.5 m (9'6"-18'1") stick range on the Cat 375, the same range for standard-stick and GP boom setups. |
| Rated demolition capacity | Reinforced concrete structures up to 150 cm (5 ft) thick or in diameter, including embedded rebar and light steel, without torching. |
Service capacities (summary)
| Fuel tank | Not applicable — no onboard engine. |
| Hydraulic system | No dedicated onboard reservoir. Runs on the carrier excavator's hydraulic oil supply. |
| Engine oil | Not applicable — no onboard engine. |
| Cooling system | Not applicable — no onboard engine. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
CR50 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Hydraulic system (work tool) | No separate tank or capacity for this tool. The crusher jaw cylinders run off the host excavator's own hydraulic circuit and share its oil supply. | Match whatever hydraulic fluid the host excavator's OMM specifies for its hydraulic system (Cat HYDO Advanced or Cat BIO HYDO Advanced grades sized to ambient temperature). The work tool itself carries no separate fluid recommendation. |
| Grease - pivot pins, cylinder rod ends, and crushing-arm bushings | Grease points only, no fill capacity listed. Lubricate per the schedule in the tool's maintenance chart (daily/every shift under normal use, more often in wet or abrasive demolition work). | Cat Grease (multipurpose, extreme-pressure, NLGI 2). Cat Advanced 3Moly Grease is the upgrade choice for heavily loaded pin joints under continuous impact/crushing duty. No separate cold- or hot-climate viscosity split is called out for this tool; use a general-purpose EP grease suited to the ambient range. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar CR50 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
Servicing the CR50 beyond the schedule
Predictive Maintenance & Fluid Analysis
The CR50 has no engine or reservoir of its own, so fluid condition tracks the host 375-class excavator's auxiliary hydraulic system. Pull regular oil samples from the carrier's aux circuit to catch contamination before it scores crusher cylinder bores or rotator seals. Track jaw pivot and cylinder rod-end bushing play at every grease interval; rising clearance predicts pin-and-bushing failure before it shows up as jaw slop. Watch jaw-tooth wear rate against tonnage crushed to plan hardfacing or replacement before a tooth breaks off mid-cycle.
Corrective & Common Repairs
Most CR50 repairs trace to abrasive demolition debris, not internal wear. Cylinder rod seals weep first when grit gets past a torn wiper; replace wipers and seals at the first sign of a wet rod rather than waiting for a full leak. Jerky or stalled rotation usually points to the rotator's relief valve or accumulators, not the motor itself, so check those first. Hydraulic hose and fitting damage from flying rebar and rubble is the most common field failure; carry spares and inspect routing after every heavy demolition run.
Overhaul & Rebuild Points
Jaw pivot pins and crushing-arm bushings take the heaviest cyclic shock load on the CR50 and are the main rebuild item; replace pins and bushings together as matched sets to restore factory clearance rather than mixing worn and new. Crusher cylinders warrant a full rebuild (rod, seals, glands) once rod scoring or persistent seepage appears. Because the whole tool is a welded frame under repeated impact loading, inspect the jaw and cylinder-mount welds for hairline cracking at every major service and repair cracks before they propagate through the pivot boss.
Seasonal & Environment Servicing
Wet, muddy, or abrasive sites wash grease out of the jaw pivot and cylinder rod-end points fast, so shorten the grease interval below the standard shift cycle whenever debris or water intrusion is heavy. Grit at the rod seals is the top cause of premature cylinder wear, so wipe rods clean before greasing. The CR50 has no hydraulic fluid or engine of its own, so cold-weather starts are governed by the host 375-class carrier; follow that machine's OMM for cold-weather hydraulic fluid grade and warm-up before applying full crushing force.
CR50 attachments & work tools
Concrete crusher jaw (primary work tool)
CR50 is the largest tool in Cat's original CR-series concrete crusher lineup (CR20/CR28/CR35/CR50), built for large reinforced-concrete demolition such as bridge decks, parking structures, columns, and abutments up to roughly 1.5 m (5 ft) thick or in diameter. Service weight is approximately 7,000 kg (15,450 lb) excluding the mounting bracket, overall length is near 3.44 m (135 in), and the jaw throat opening runs about 1.6-1.62 m (63-65 in) depending on the measurement point used.
Rebar-cutting knives and crushing teeth
Throat-mounted rotatable rebar-cutting knives handle reinforcing steel and light structural profiles inside the concrete, removing the need for separate torch cutting. Crushing teeth on each jaw are bolt-on or weld-on alloy steel that can be built up or replaced, and the cutting knives can be rotated to bring fresh edges into use before the set needs replacing.
360-degree hydraulic rotator
A top-mounted, large-diameter slewing ring gives the CR50 continuous 360-degree rotation so the operator can reposition the jaw over the structure without repositioning the carrier. The rotation circuit is protected by a relief valve and small accumulators that keep hydraulic pressure spikes from reaching the excavator's stick and boom.
Mounting / coupler system
The CR50 mounts through a carrier-specific top pin bracket matched to the host excavator's stick, and the quoted service weight excludes this bracket. Factory literature for this tool family shows a dedicated pin mount rather than a quick-coupler pin-grabber interface, so bracket selection is tied to the specific carrier model rather than a universal coupler.
Hydraulic arrangement / kit requirements
Crushing-jaw cylinders need high auxiliary flow, up to roughly 579 L/min (153 gpm) at up to about 34,300 kPa (4,980 psi), while the rotator runs on a separate low-flow line near 20 L/min (5 gpm) at up to about 17,200 kPa (2,465 psi). The host excavator needs a matched auxiliary or tool-control hydraulic kit sized for both circuits; base excavator hydraulics without the correct kit will not run this size of crusher properly.
Carrier and boom matching
Factory matching data ties the CR50 to the Cat 375-class excavator, run stick-mounted with a stick range of about 2.9-5.5 m (9'6" to 18'1"). The same stick range applies when the carrier is fitted with a general-purpose reach boom, so boom choice does not change the usable stick window for this tool.
Crushing and shearing force
Rated tip crushing force is about 1,628 kN (183 st) and middle-tooth crushing force is about 2,100 kN (236 st), with peak shearing force at the cutter center near 6,857 kN (770 st). These ratings place the CR50 well above the smaller CR20/CR28/CR35 tools in the same family, matching it to large-diameter reinforced sections and heavier carriers.
Falling-object guarding option
Cat recommends falling-object protection for the carrier cab on demolition jobs where overhead debris is a risk. This guarding is offered as a dealer-fitted option rather than standard equipment on the crusher package, so it needs to be specified separately when ordering for this kind of work.
All CR50 assemblies by section
Every catalogued assembly group for the Caterpillar CR50. 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 |
160-9070 Housing Gp-Crusher
| 13***24 | Screw-Flat Head | 20 |
| 14***63 | Lockwasher | 20 |
| 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 |
160-9068 Housing Gp-Crusher
| 14***63 | Lockwasher | 12 |
| 14***86 | Screw-Flat Head | 12 |
| 14***79 | Bolt; (M20x2.5x100-mm) | 30 |
145-4007 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 |
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 |
145-6438 Mounting Gp-Rotator Motor
| 14***63 | Lockwasher | 1 |
| 14***93 | Bolt; (M12x1.75x40-mm) | 1 |
| 14***80 | Gear-Planetary | 1 |
Hydraulic System
160-9107 Cylinder & Lines Gp-Crusher
| 14***30 | Mounting Group-Cylinder | 1 |
| 16***45 | Cylinder Group-Hydraulic | 2 |
| 16***97 | Lines Group-Cylinder | 1 |
160-9106 Cylinder & Lines Gp-Crusher
| 14***89 | Mounting Group-Cylinder | 1 |
| 15***93 | Cylinder Group-Hydraulic | 2 |
| 16***96 | Lines Group-Cylinder | 1 |
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 |
160-9109 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 |
160-9108 Cylinder & Lines Gp-Crusher
| 14***08 | Mounting Group-Cylinder | 1 |
| 15***19 | Cylinder Group-Hydraulic | 2 |
| 16***98 | Lines Group-Cylinder | 1 |
160-8245 Cylinder Gp-Hydraulic
| 03***25 | Ring-Backup | 2 |
| 08***48 | Ring | 1 |
| 09***31 | Seal-O-Ring | 1 |
145-3724 Cylinder Gp-Hydraulic
| 09***77 | Setscrew-Socket | 1 |
| 10***19 | Ring-Retaining | 4 |
| 14***45 | Bearing | 2 |
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 |
145-4039 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 |
160-9096 Lines Gp-Cylinder
| 14***60 | Fitting | 4 |
| 14***54 | 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 |
160-9099 Lines Gp-Cylinder
| 09***85 | Bolt-Socket Head; (M14x2x30-mm) | 8 |
| 14***60 | Fitting | 4 |
| 14***25 | Hose As | 2 |
160-9098 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 |
145-4011 Lines Gp-Cylinder
| 09***85 | Bolt-Socket Head; (M14x2x30-mm) | 8 |
| 12***88 | Flange-Split | 16 |
| 12***22 | Bolt; (M14x2x50-mm) | 8 |
160-6668 Lines Gp-Motor
| 11***30 | Hose As | 2 |
| 15***94 | Adapter As | 6 |
| 15***44 | Seal | 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 |
160-6670 Lines Gp-Motor
| 11***23 | Hose As | 2 |
| 15***94 | Adapter As | 6 |
| 15***44 | Seal | 1 |
145-6439 Lines Gp-Motor
| 14***56 | Valve Group-Pressure Control | 1 |
| 14***61 | Accumulator | 2 |
| 14***25 | Plug | 3 |
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 |
145-4021 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 |
145-3667 Motor & Lines Gp-Rotator
| 14***67 | Motor & Lines Group-Rotator | 1 |
| 14***53 | Motor Group-Gerotor | 1 |
| 14***38 | Mounting Group-Rotator Motor | 1 |
145-6153 Motor Gp-Gerotor
| 14***53 | Motor Group-Gerotor | 1 |
| 14***54 | Key | 1 |
| 14***55 | Kit-Seal | 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 |
160-9122 Motor Gp-Gerotor
| 09***66 | Bolt; (M8x1.25x75-mm) | 4 |
| 16***22 | Motor Group-Gerotor | 1 |
| 16***82 | Motor Group-Gerotor | 1 |
145-3730 Mounting Gp-Cylinder
| 14***42 | Plate | 4 |
| 14***49 | Pin As | 2 |
| 14***19 | Pin As | 2 |
145-4008 Mounting Gp-Cylinder
| 14***07 | Plate | 4 |
| 14***08 | Mounting Group-Cylinder | 1 |
| 14***09 | Pin As | 2 |
145-5731 Mounting Gp-Cylinder
| 14***31 | Plate | 4 |
| 14***31 | Mounting Group-Cylinder | 1 |
| 14***32 | Pin As | 2 |
145-5389 Mounting Gp-Cylinder
| 14***42 | Plate | 4 |
| 14***38 | Pin As | 2 |
| 14***31 | Spacer; (118mm Dia X 9.5mm Thk) | 8 |
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
161-2661 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 |
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 |
Work Tool Arrangement
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 |
145-5510 Crusher Ar-Hydraulic
| 14***10 | Crusher Ar-Hydraulic | 1 |
| 14***12 | Tooth & Cutting Edge Group | 1 |
| 16***67 | Housing Group-Crusher | 1 |
145-4077 Crusher Ar-Hydraulic
| 14***20 | Cylinder & Lines Group-Crusher | 1 |
| 14***21 | Motor & Lines Group-Rotator | 1 |
| 14***23 | Tooth & Cutting Edge Group | 1 |
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 |
145-4010 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 |
145-5774 Tooth & Cutting Edge Gp
| 14***15 | Screw-Flat Head; (M20x2.5x100-mm) | 12 |
| 14***84 | Tooth-Crushing | 4 |
| 14***78 | Lockwasher | 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 |
CR50 serial number reference
The ID plate is riveted or bolted to the crusher's main frame casting, usually near the pivot/mounting bracket where the tool attaches to the excavator stick, not on the excavator itself. Read the first three characters as the serial prefix (ties the unit to its model/build range) and the digits that follow as the sequential unit number within that prefix. If the plate is painted over or worn, the same prefix and number are usually stamped into the casting near the plate.
| Prefix | Identifies | Notes |
|---|---|---|
| 5ZW | CR50 hydraulic concrete crusher/pulverizer work tool (largest unit in the CR20/CR28/CR35/CR50 line, sized for the Cat 375 excavator, stick range about 2.9-5.5 m / 9'6"-18'1") | Sequential prefix format (5ZW1 and up), no engine of its own - runs off the host excavator's auxiliary hydraulic circuit. Each model in the CR-family parts/service manual set carries its own distinct prefix rather than one shared range; do not apply this number to the smaller CR20/CR28/CR35 siblings. Only the low end of the range is documented publicly - confirm the exact serial break for your unit with your dealer. |
Frequently asked questions
What engine does the CR50 use?
None. The CR50 is a hydraulic work tool with no engine, cooling system, or fuel tank of its own. It draws all its power from the auxiliary hydraulic circuit of its host 375-class excavator, which supplies both the crushing cylinders and the rotation circuit.
What is the CR50's operating weight?
The tool's own service weight is approximately 7,000 kg (15,450 lb), excluding its mounting bracket. That figure is the attachment's weight alone, not the weight of the host excavator it is mounted on.
What replaced the CR50?
No documented direct replacement exists. The CR50 was the largest unit in Caterpillar's original CR20/CR28/CR35/CR50 concrete-crusher line and appears to have run as a single generation. It remains supported today through Caterpillar's parts network for service items like pins, bushings, hoses, and jaw teeth, with no confirmed successor model identified in Caterpillar's current attachment lineup.
What CR50 owners discuss
What wears out fastest on a CR50's crushing jaw, and how do crews deal with it?
What's the real-world wear pattern on the CR50's cylinders and jaw pin and bushing joints?
How does the CR50's rotator behave, and what does trouble look like?
What hydraulic hose and fitting problems come up most on a crusher this size?
What carrier hydraulic output does the CR50 need, and what happens if it's mismatched?
Does the CR50's frame or jaw structure show fatigue over time?
What should you check on a used CR50 before buying it?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific CR50 part?
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