Caterpillar 303.5E2 CR is a mini excavator manufactured from 2019 to 2021. It has a weight of 3.73 tons and a track width of 300 m…
Caterpillar 303.5E2 CR is a mini excavator manufactured from 2019 to 2021. It has a weight of 3.73 tons and a track width of 300 mm. The transport dimensions are 4.79 meters in length, 1.78 meters in width, and 2.5 meters in height. The machine features a tear-out force of 33 kN, a dredging depth of 3.18 meters, and a maximum horizontal reach of 5.32 meters. The bucket capacity is 0.054 cubic meters. Special equipment includes a blade and rubber tracks.
More technical details, like: bucket capacity min., bucket capacity max., bucket width, standard tyres, dimension lxwxh, revolutions at max torque, max. torque are available in the full technical specs.
The Caterpillar 303.5E2 CR was manufactured from 2019 to 2021.
How much does the Caterpillar 303.5E2 CR weigh?
The Caterpillar 303.5E2 CR weighs 3.73 tons.
What are the transport dimensions of the Caterpillar 303.5E2 CR mini excavator?
The Caterpillar 303.5E2 CR has a transport length of 4.79 meters, a transport width of 1.78 meters, and a transport height of 2.5 meters.
What is the track width of the Caterpillar 303.5E2 CR mini excavator?
The Caterpillar 303.5E2 CR mini excavator has a track width of 300 mm.
What are the excavation performance specifications of the Caterpillar 303.5E2 CR mini excavator?
The Caterpillar 303.5E2 CR has a dredging depth of 3.18 meters and a maximum horizontal reach of 5.32 meters.
What is the tear-out force of the Caterpillar 303.5E2 CR mini excavator?
The Caterpillar 303.5E2 CR mini excavator has a tear-out force of 33 kN.
What is the bucket capacity of the Caterpillar 303.5E2 CR mini excavator?
The bucket capacity of the Caterpillar 303.5E2 CR mini excavator is 0.054 cubic meters.
What operator safety and support features does the Caterpillar 303.5E2 CR have?
The Caterpillar 303.5E2 CR is equipped with a cabin that includes ROPS (Roll-Over Protective Structure) for driver protection.
How much is a Caterpillar 303.5E2 CR Mini excavator (2019u20132021) worth?
The residual value of the Caterpillar 303.5E2 CR depends on the machine's individual parameters. Visit the LECTURA Valuation to check it.
Caterpillar 303.5E2 CR overview
Caterpillar 303.5E2 CR features overview
Cat E2 Series Mini Hydraulic Excavators are designed to continue the solid performance of their E Series predecessors while creating even greater value for customers. The new High Definition Hydraulic (HDH) System, redesigned operator station and an improved digital control panel dedicated to Cat Mini Excavators COMPASS (Complete, Operation, Maintenance, Performance And Security System) all include standard features that enhance power and increase value. Comfortable Working Environment The high quality suspension seat, 76 mm (3 in) retractable seat belt, easy-to-adjust armrests and ergonomic layout provide superior comfort while reducing operator fatigue. The new locking system in front of the window, the updated operator interface as well as 100% pilot controls offer a world class operator station and customer value. Powerful Digging, Precise Control The new High Definition Hydraulic (HDH) system in the E2 machines provides load sensing and flow sharing capability that results in operating precision, efficient performance and greater control. By combining variable pump efficiency, open valve simplicity and a simple architecture, the valve achieves controllability. Simple valve architecture reduces heat resulting in reduced hydraulic instability and improved overall efficiency. Complete, Operation, Maintenance, Performance and Security System The COMPASS control panel of the Cat E2 series mini hydraulic excavators has been specially designed by Caterpillar for compact excavators. It adds several new features to the machines to increase the height of customer value. All following features are now standard on all models in the E2 range. Complete All operator field functions are standard operation Simple operation of the pattern changer, hydraulic quick coupler and fuel gauge View at the touch of a button Maintenance maintenance intervals, diagnostics and working hours Performance Save up to 20% fuel while maintaining optimum levels of performance Safety Anti-theft with individual user and master password system Ergonomically designed control panel Passcode Protected Security System A standard theft device is now available on each E2 Series Compact Excavator. Starting the machine requires a five-digit alphanumeric password when anti-theft protection is activated. There is one master password and, if desired, up to five user passwords can be created by the owner.
UNLOCK the new features and experience the value of exclusive COMPASS control panel on E2 Series compact excavators. Standard equipment may vary. Consult your Cat dealer for details. 1-way and 2-way (combined function) Auxiliary hydraulic lines, Adjustable auxiliary fl ow control for work tools, Adjustable wrist rests, alternator, anti-theft system, Automatic engine idler mode, Automatic swing park brake, Automatic twospeed, auxiliary line Quick disconnects, Boom cylinder guard, Cab mounted working light, Canopy with Top Guard ISO 10262 (Stage 1), ROPS ISO 12117-2 and TOPS ISO 12117, Coat hook, COMPASS display panel, Cup holder, Continuous flow, Control pattern changer (not available in Europe), Dozer blade with flake function, Floor mat, Foot travel pedals, Horn, Hydraulic oil cooler, Lifting eyes on bucket linkage (standard equipment for all regions except Europe), Lockable storage box, Low maintenance support pin joints, Maintenance free battery, Rubber track, Retractable seatbelt, Stick 303.5E2 CR/304E2 CR Longstick (optional in Europe) 305E2 CR/305 rear suspension wheelrest front
Engine / Driveline and transmission
Engine Each of the E2 models is equipped with the engine solution to optimally support the required performance and power based on weight class and application. Standard features such as auto idle also offer consistently lower engine rpm to increase engine life and fuel savings. Smart Technology is a new feature of the 303.5E2. By integrating this technology into the U.S. Engine EPA Tier 4 Final 23.5 hp (17.6 kw), the machine can meet and exceed the previous generation 303.5E output. In addition, when tested on the 303.5E2, improved fuel efficiency was achieved by 8% and 7% higher efficiency over the E Series. Automatic Two Speed With the standard automatic two speed function, the machine will automatically compensate for high rpm and torque travel requirements based on job site conditions to give the operator optimum speed and control. The machine can be set in low gear under tight conditions when travelling slower.
Hydraulics
The right machine with the right performance, versatility and ease of operation required for your application. Joystick Controls The boom swing and auxiliary hydraulic functions are located at your fingertips for smooth, easy operation. They also eliminate foot pedals and free the floor for more room for the operator's feet. 100% pilot controls ensure consistent flow and pressure throughout the entire life of the machine. This allows all control elements to be locked out when starting the machine. 200 Degree Bucket Rotation Industry-leading bucket rotation of over 200 degrees ensures greater material retention during truck loading. It also allows easier vertical wall digging without repositioning the machine. Continuous Flow Once this feature is activated via a button on the monitor, E2 Series machines can run in continuous flow mode. With the auxiliary hydraulics on the right joystick, you simply hold the roller switch for 2.5 seconds at the desired rate of delivery and direction allowing the machine to maintain that flow until it is switched off. Simple Dozer Control with Float Function The dozer function is pilot controlled from inside the cab, ensuring smooth, proportional operation. Standard float feature is activated by pushing the lever fully forward into the detent position. Cleaning and backfilling are easier as the operator does not have to adjust blade height during travel. Excellent Blade Visibility Visibility to the blade is excellent in any position, allowing the blade to be positioned behind the operator and away from the front linkage for better access when pulling back and finishing in tight areas. Angle Blade Option Increase the versatility of the machine with the Cat angle dozer blade. Built for strength and durability, the hydraulic angle blade features a hardened steel wear edge and good protection against cylinders and hydraulic lines. The angle blade can be positioned straight ahead or angled up to 25 degrees towards left or right which reduces the number of times needed to secure and reset when refilling so you can get the job done faster. All functions of the blade are controlled using a proportional roller switch for the angle function with a joystick.
Tyres / Tracks
Zero Tail Swing The 303.5E2 CR and 304E2 CR models have a zero tail swing design. On these models, the radius of the upper body remains completely within the width of the undercarriage.
Rubber Track With the standard rubber track, you can work on multiple surfaces such as grass, walkway or stone without damaging the surface or machine. Steel Track Optional is available for harsh conditions like demolition. The extra weight of steel tracks usually ensures better stability when digging over the side of the machine. Rubber mats Optional rubber pads can be attached to the steel track to prevent damage to paved surfaces and minimise noise and vibration during travel with the steel chain system. This option provides the maximum overall stability. (Not available on the 303.5E2 CR and 304E2 CR.)
Dimensions and weight
Engine
Engine Model
Cat® C1.7
Cat C2.4
Cat C2.4
Cat C2.4
Net Power (ISO 9249)
17.5 kW (23.5 hp)
30 kW (40.2 hp)
30 kW (40.2 hp)
32.9 kW (44.2 hp)
Weights
Operating Weight with Canopy,"3539 kg (7,803 lb)
3884 kg (8,564 lb)
5020 kg (11,069 lb)
5259 kg (11,596 lb)"
Operating Weight with Cab,"3723 kg (8,209 lb)
4039 kg (8,906 lb)
5185 kg (11,433 lb)
5423 kg (11,958 lb)"
Operating Specifications
Maximum Dig Depth
3180 mm (125 in)
3430 mm (135 in)
3670 mm (144 in)
3870 mm (152 in)
Weights*
Operating Weight with Canopy
303.5E2 CR
3539 kg
7
803 lb"
304E2 CR
3884 kg
8
564 lb"
305E2 CR
5020 kg
11
069 lb"
305E2 CR
5259 kg
11
596 lb"
Operating Weight with Cab
303.5E2 CR
3723 kg
8
209 lb"
304E2 CR
4039 kg
8
906 lb"
305E2 CR
5185 kg
11
433 lb"
305E2 CR
5423 kg
11
958 lb"
Pump Flow
303.5E2 CR/304E2 CR
100 L/min
26.4 gal/min
305E2 CR
150 L/min
39.6 gal/min
305.5E2 CR
163 L/min
43.1 gal/min
Operating Pressure – Equipment
245 bar
3
553 psi"
Operating Pressure – Travel
245 bar
3
553 psi"
Operating Pressure – Swing
216 bar
3
132 psi"
Auxiliary Circuit – Primary
303.5E2 CR/304E2 CR
70 L/min
18.5 gal/min
305E2 CR/305.5E2 CR
80 L/min
21.1 gal/min
Auxiliary Circuit – Secondary
25 L/min
6.6 gal/min
Digging Force = Stick (standard)
303.5E2 CR
18.9 kN
4
249 lbf"
304E2 CR
21.6 kN
4
856 lbf"
305E2 CR
24.7 kN
5
553 lbf"
305.5E2 CR
28.9 kN
6
497 lbf"
Digging Force = Stick (long)
303.5E2 CR
16.9 kN
3
799 lbf"
304E2 CR
19.5 kN
4
384 lbf"
305E2 CR
21.3 kN
4
788 lbf"
305.5E2 CR
24.8 kN
5
575 lbf"
Digging Force = Bucket
303.5E2 CR
33.0 kN
7
419 lbf"
304E2 CR
37.8 kN
8
498 lbf"
305E2 CR
44.7 kN
10
049 lbf"
305.5E2 CR
50.9 kN
11
443 lbf"
Standard Stick
Long Stick
1
Dig Depth
2880 mm
113 in
3180 mm
125 in
2
Vertical Wall
2320 mm
91 in
2470 mm
97 in
3
Maximum Reach at Ground Level
5060 mm
199 in
5320 mm
209 in
4
Maximum Reach
5200 mm
205 in
5440 mm
214 in
5
Maximum Dig Height
4920 mm
194 in
5030 mm
198 in
6
Maximum Dump Clearance
3520 mm
139 in
3640 mm
143 in
7
Boom In Reach
2060 mm
81 in
2180 mm
86 in
8
Tail Swing
890 mm
35 in
890 mm
35 in
9
Maximum Blade Height
400 mm
16 in
400 mm
16 in
10
Maximum Blade Depth
470 mm
19 in
470 mm
19 in
11
Boom Height in Shipping Position
1420 mm
56 in
1650 mm
65 in
12
O/A Shipping Height
2500 mm
98 in
2500 mm
98 in
13
Swing Bearing Height
565 mm
22 in
565 mm
22 in
14
O/A Undercarriage Length
2220 mm
87 in
2220 mm
87 in
15
O/A Shipping Length
4730 mm
186 in
4790 mm
189 in
16
Boom Swing Right
765 mm
30 in
765 mm
30 in
17
Boom Swing Left
670 mm
26 in
670 mm
26 in
18
Track Belt/Shoe Width
300 mm
12 in
300 mm
12 in
19
O/A Track Width
1780 mm
70 in
1780 mm
70 in
Standard Stick
Long Stick
1
Dig Depth
3130 mm
123 in
3430 mm
135 in
2
Vertical Wall
2420 mm
95 in
2560 mm
101 in
3
Maximum Reach at Ground Level
5220 mm
206 in
5470 mm
215 in
4
Maximum Reach
5350 mm
211 in
5590 mm
220 in
5
Maximum Dig Height
4980 mm
196 in
5070 mm
200 in
6
Maximum Dump Clearance
3590 mm
141 in
3690 mm
145 in
7
Boom In Reach
2110 mm
83 in
2220 mm
87 in
8
Tail Swing
975 mm
38 in
975 mm
38 in
9
Maximum Blade Height
400 mm
16 in
400 mm
16 in
10
Maximum Blade Depth
470 mm
19 in
470 mm
19 in
11
Boom Height in Shipping Position
1480 mm
58 in
1770 mm
70 in
12
O/A Shipping Height
2500 mm
98 in
2500 mm
98 in
13
Swing Bearing Height
565 mm
22 in
565 mm
22 in
14
O/A Undercarriage Length
2220 mm
87 in
2220 mm
87 in
15
O/A Shipping Length
4820 mm
190 in
4930 mm
194 in
16
Boom Swing Right
735 mm
29 in
735 mm
29 in
17
Boom Swing Left
670 mm
26 in
670 mm
26 in
18
Track Belt/Shoe Width
350 mm
14 in
350 mm
14 in
19
O/A Track Width
1950 mm
77 in
1950 mm
77 in
Standard Stick
Long Stick
1
Dig Depth
3280 mm
129 in
3670 mm
144 in
2
Vertical Wall
2320 mm
91 in
2630 mm
104 in
3
Maximum Reach at Ground Level
5430 mm
210 in
5810 mm
229 in
4
Maximum Reach
5600 mm
220 in
5960 mm
235 in
5
Maximum Dig Height
5250 mm
207 in
5440 mm
214 in
6
Maximum Dump Clearance
3720 mm
129 in
3920 mm
154 in
7
Boom In Reach
2350 mm
93 in
2530 mm
100 in
8
Tail Swing
1100 mm
43 in
1100 mm
43 in
9
Maximum Blade Height
405 mm
16 in
405 mm
16 in
10
Maximum Blade Depth
555 mm
22 in
555 mm
22 in
11
Boom Height in Shipping Position
1750 mm
69 in
2150 mm
85 in
12
O/A Shipping Height
2550 mm
100 in
2550 mm
100 in
13
Swing Bearing Height
615 mm
24 in
615 mm
24 in
14
O/A Undercarriage Length
2580 mm
102 in
2580 mm
102 in
15
O/A Shipping Length
5180 mm
204 in
5290 mm
208 in
16
Boom Swing Right
785 mm
31 in
785 mm
31 in
17
Boom Swing Left
695 mm
27 in
695 mm
27 in
18
Track Belt/Shoe Width
400 mm
16 in
400 mm
16 in
19
O/A Track Width
1980 mm
78 in
1980 mm
78 in
Standard Stick
Long Stick
1
Dig Depth
3470 mm
137 in
3870 mm
152 in
2
Vertical Wall
2330 mm
92 in
2730 mm
107 in
3
Maximum Reach at Ground Level
5630 mm
222 in
6020 mm
237 in
4
Maximum Reach
5790 mm
228 in
6170 mm
243 in
5
Maximum Dig Height
5330 mm
210 in
5590 mm
220 in
6
Maximum Dump Clearance
3820 mm
150 in
4080 mm
161 in
7
Boom In Reach
2400 mm
94 in
2530 mm
100 in
8
Tail Swing
1130 mm
44 in
1130 mm
44 in
9
Maximum Blade Height
405 mm
16 in
405 mm
16 in
10
Maximum Blade Depth
555 mm
22 in
555 mm
22 in
11
Boom Height in Shipping Position
1740 mm
69 in
2150 mm
85 in
12
O/A Shipping Height
2550 mm
100 in
2550 mm
100 in
13
Swing Bearing Height
615 mm
24 in
615 mm
24 in
14
O/A Undercarriage Length
2580 mm
102 in
2580 mm
102 in
15
O/A Shipping Length
5330 mm
210 in
5460 mm
215 in
16
Boom Swing Right
785 mm
31 in
785 mm
31 in
17
Boom Swing Left
695 mm
27 in
695 mm
27 in
18
Track Belt/Shoe Width
400 mm
16 in
400 mm
16 in
19
O/A Track Width
1980 mm
78 in
1980 mm
78 in
Other features
Maintenance and Performance Information Simply track various maintenance and performance parameters of your machine. Compact Radius The compact radius design provides greater machine versatility and the ability to work within confined areas. This allows the operator to concentrate on working without having to worry about damaging the back of the machine or other job site obstacles. On the 305E2 CR and the 305.5E2 CR, the upper body remains within 140 mm (5.5 in) of undercarriage. Couplers The E2 series is available with a mechanical pin-grabber or hydraulic pin-grabber quick coupler option. The clutch design uses a wedge to keep the tool securely on the coupling, reducing wear and maintaining a tight fit due to the life of the Coupler. The Hydraulic Coupler allows the operator to replace tools without leaving the comfort of the cab. Easy Service Extended maintenance intervals, durable components and easy service access points lower your owning and operating costs while increasing your long-term value. Liftable side hood allows access to air filter, main tool valve, 1-way/2 way auxiliary flow selector, accumulator, fuel fi lter and hydraulic tank. This eliminates the need to raise the cab when maintaining and servicing the machine. Swing open door provides access to major components and service points including engine oil check and fill, vertically mounted engine oil filter, starter motor and alternator. Easy access to the radiator and oil cooler results in simplified cleaning and reduced maintenance times. S O SSM Oil sampling valve enables easy removal of Hydraulic fluid for preventative maintenance. 500 hour engine oil as well as filter change time reduce running cost and machine downtime.
Tables
303.5E2 CR
Cat C1.7*
304E2 CR/305E2 CR/305.5E2 CR
Cat C2.4**
Rated Net Power (ISO 9249)
303.5E2 CR
17.5 kW
23.5 hp
304E2 CR/305E2 CR
30 kW
40.2 hp
305.5E2 CR
32.9 kW
44.1 hp
Gross Power
303.5E2 CR
18.5 kW
24.8 hp
304E2 CR/305E2 CR
31.2 kW
41.8 hp
305.5E2 CR
34.1 kW
45.7 hp
Bore
87 mm
3.4 in
Stroke
303.5E2 CR
92.4 mm
3.6 in
304E2 CR/305E2 CR/305.5E2 CR
102.4 mm
4 in
Displacement
303.5E2 CR
1.7 L
104 in3
304E2 CR/305E2 CR/305.5E2 CR
2.4 L
146 in3
Travel Speed – High
303.5E2 CR
4.6 km/h
2.9 mph
304E2 CR
5.2 km/h
3.2 mph
305E2 CR
4.4 km/h
2.7 mph
305.5E2 CR
4.5 km/h
2.8 mph
Travel Speed – Low
303.5E2 CR
3.2 km/h
2.0 mph
304E2 CR
3.3 km/h
2.1 mph
305E2 CR/305.5E2 CR
2.8 km/h
1.7 mph
Maximum Traction Force – High Speed
303.5E2 CR
17.0 kN
3
822 lbf"
304E2 CR
16.9 kN
3
799 lbf"
305E2 CR
24.1 kN
5
418 lbf"
305.5E2 CR
26.8 kN
6
025 lbf"
Maximum Traction Force – Low Speed
303.5E2 CR
31.1 kN
6
992 lbf"
304E2 CR
31.0 kN
6
969 lbf"
305E2 CR
45.2 kN
10
161 lbf"
305.5E2 CR
47.8 kN
10
745 lbf"
Ground Pressure
303.5E2 CR
31.7 kPa
4.6 psi
304E2 CR
29.5 kPa
4.3 psi
305E2 CR
30.8 kPa
4.5 psi
305.5E2 CR
32.2 kPa
4.7 psi
Service Refill Capacities
Cooling System
303.5E2 CR/304E2 CR
5.5 L
1.5 gal
305E2 CR/305.5E2 CR
10.5 L
2.8 gal
Engine Oil
303.5E2 CR/304E2 CR
7.0 L
1.8 gal
305E2 CR/305.5E2 CR
9.5 L
2.5 gal
Fuel Tank
303.5E2 CR/304E2 CR
46 L
12.2 gal
305E2 CR/305.5E2 CR
63 L
16.6 gal
Hydraulic Tank
303.5E2 CR/304E2 CR
42.3 L
11.2 gal
305E2 CR/305.5E2 CR
68.3 L
18 gal
Hydraulic System
303.5E2 CR/304E2 CR
65 L
17.2 gal
305E2 CR/305.5E2 CR
78 L
20.6 gal
Machine Swing Speed
10 rpm
Boom Swing – Left (without stop)
303.5E2 CR/305E2 CR/305.5E2 CR
80°
304E2 CR
70°
Boom Swing – Left (with stop)
303.5E2 CR/304E2 CR
55°
305E2 CR/305.5E2 CR
60°
Swing – Right
50°
303.5E2 CR
1780 mm
70 in
304E2 CR
1950 mm
77 in
305E2 CR/305.5E2 CR
1980 mm
78 in
Height
303.5E2 CR/304E2 CR
325 mm
13 in
305E2 CR/305.5E2 CR
375 mm
14.8 in
Dig Depth
303.5E2 CR/304E2 CR
470 mm
19 in
305E2 CR/305.5E2 CR
555 mm
21.9 in
Lift Height
303.5E2 CR/304E2 CR
400 mm
16 in
305E2 CR/305.5E2 CR
405 mm
15.9 in
Lift Point Radius,"3000 mm (9'8"")
4000 mm (13'1"")"
Front
Side
Front
Side
Blade Down
kg
1340
720
850
460
,lb,"2,955
1,588
1,874
1,014"
Blade Up
kg
750
660
470
420
,lb,"1,654
1,455
1,036",926
Lift Point Radius,"3000 mm (9'8"")
4500 mm (14'9"")"
Front
Side
Front
Side
Blade Down
kg
1570
910
860
480
lb,"3,462
2,007
1,896
1,058"
Blade Up
kg
820
820
430
430
lb,"1,808
1,808",948,948
Lift Point Radius,"3000 mm (9'8"")
4500 mm (14'9"")"
Front
Side
Front
Side
Blade Down
kg
2340
1200
1260
640
lb,"5,159
2,646
2,778
1,411"
Blade Up
kg
1450
1070
760
570
lb,"3,197
2,359
1,676
1,257"
Lift Point Radius,"3000 mm (9'8"")
4500 mm (14'9"")"
Front
Side
Front
Side
Blade Down
kg
2590
1290
1380
690
,lb,"5,710
2,844
3,042
1,521"
Blade Up
kg
1550
1150
820
620
,lb,"3,417
2,535
1,808
1,367"
Machine inspection
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