The Cat® 309 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.The 309 CR also features high flow hydraulics to handle power hungry attachments such as mulchers and brushcutters.
| Specifications | |
|---|---|
| Note | The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage. |
| Weights | |
|---|---|
| Operating Weight | 21091 lb / 9565 kg |
| Maximum Operating Weight with Cab** | 21091 lb / 9565 kg |
| Note (1) | *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. |
| Note (2) | **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. |
| Minimum Operating Weight with Cab* | 19735 lb / 8950 kg |
| Engine | |
|---|---|
| Displacement | 203 in³ / 3.33 l |
| Bore | 3.7 in / 94 mm |
| Stroke | 4.7 in / 120 mm |
| Gross Power - SAE J1995 | 74.3 HP / 55.4 kW |
| Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 | 69.5 HP / 51.8 kW |
| Engine Model | Cat C3.3B |
| Dimensions - Long Stick | |
|---|---|
| Dig Depth | 182.8 in / 4642 mm |
| Maximum Dump Clearance | 199.7 in / 5072 mm |
| Boom In Reach | 126.6 in / 3215 mm |
| Vertical Wall | 134 in / 3404 mm |
| Maximum Blade Depth | 26 in / 671 mm |
| O/A Undercarriage Length | 126 in / 3200 mm |
| O/A Track Width | 97.2 in / 2470 mm |
| Stick Length | 92.8 in / 2358 mm |
| Maximum Blade Height | 16.1 in / 408 mm |
| Maximum Dig Height | 277.1 in / 7039 mm |
| Tail Swing with Counterweight | 62.4 in / 1585 mm |
| Maximum Reach | 300.7 in / 7637 mm |
| Cab Height | 100 in / 2541 mm |
| Ground Clearance | 14 in / 356 mm |
| Swing Bearing - Height | 29.7 in / 756 mm |
| Track Belt/Shoe Width | 17.7 in / 450 mm |
| Boom Swing - Left | 23.8 in / 604 mm |
| Boom Swing - Right | 36.8 in / 935 mm |
| Tail Swing without Counterweight | 57.1 in / 1450 mm |
| Maximum Reach - Ground Level | 293.7 in / 7460 mm |
| Note | *Boom Height when stick is pinned in transport position with no attachments. |
| Note (2) | ***With blade positioned at the rear of the machine. |
| Note (1) | **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position. |
| Height - Boom Transport - No Tools* | 89 in / 2260 mm |
| Overall Shipping Length - with Counterweight | 7052 mm (277.6 in)*** |
| Height - Boom Working - With Tools** | 120.1 in / 3050 mm |
| Overall Shipping Length - without Counterweight | 7052 mm (277.6 in)*** |
| Weight Increase from Minimum Configuration | |
|---|---|
| Steel Tracks with Pads | 728 lb / 330 kg |
| Long Stick | 146 lb / 66 kg |
| Counterweight | 552 lb / 250 kg |
| Travel System | |
|---|---|
| Gradeability - Maximum | 30 degrees |
| Ground Pressure - Minimum Weight | 5 psi / 34.7 kPa |
| Ground Pressure - Maximum Weight | 5.4 psi / 37.1 kPa |
| Travel Speed - High | 3.1 mile/h / 4.9 km/h |
| Travel Speed - Low | 1.6 mile/h / 2.6 km/h |
| Maximum Traction Force - High Speed | 6497 lb / 28.9 kN |
| Maximum Traction Force - Low Speed | 19064 lb / 84.8 kN |
| Service Refill Capacities | |
|---|---|
| Engine Oil | 3 gal (US) / 11.2 l |
| Fuel Tank | 39 gal (US) / 147 l |
| Hydraulic System | 29 gal (US) / 110 l |
| Cooling System | 2.6 gal (US) / 10 l |
| Hydraulic Tank | 14 gal (US) / 53 l |
| Hydraulic System | |
|---|---|
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Operating Pressure - Swing | 3626 psi / 250 bar |
| Digging Force - Stick - Standard | 9500 lb / 42.3 kN |
| Digging Force - Stick - Long | 8023 lb / 35.7 kN |
| Operating Pressure - Travel | 4134 psi / 285 bar |
| Pump Flow at 2,400 rpm | 62 gal/min / 233 l/min |
| Digging Force - Bucket | 13943 lb / 62 kN |
| Operating Pressure - Equipment | 4134 psi / 285 bar |
| Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Maximum Auxiliary Circuit - Secondary - Flow at Pump | 9 gal/min / 33 l/min |
| Maximum Auxiliary Circuit - Primary - Pressure at Pump | 4134 psi / 285 bar |
| Maximum Auxiliary Circuit - Primary - Flow at Pump | 35 gal/min / 131 l/min |
| Maximum Auxiliary Circuit - Secondary - Pressure at Pump | 4134 psi / 285 bar |
| Maximum Auxiliary Circuit - High Flow - Pressure at Pump | 4134 lbf/in / 285 bar |
| Maximum Auxiliary Circuit - High Flow - Flow at Pump | 37 gal/min / 140 l/min |
| Swing System | |
|---|---|
| Machine Swing Speed | 10.6 r/min |
| Boom Swing - Right | 50 degrees |
| Boom Swing - Left | 60 degrees |
| Blade | |
|---|---|
| Height | 17 in / 431 mm |
| Width - Wide | 104 in / 2640 mm |
| Width - Standard | 97 in / 2470 mm |
| Certification - Cab | |
|---|---|
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
| Top Guard | ISO 10262:1998 (Level I) |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Sound | |
|---|---|
| Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) |
| Note | European Union Directive "2000/14/EC" |
| Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) |
| Dimensions - Standard Stick | |
|---|---|
| Boom Swing - Right | 36.8 in / 935 mm |
| Maximum Dump Clearance | 187.4 in / 4760 mm |
| Tail Swing without Counterweight | 57.1 in / 1450 mm |
| Maximum Reach - Ground Level | 273.6 in / 6949 mm |
| O/A Undercarriage Length | 126 in / 3200 mm |
| Cab Height | 100 in / 2541 mm |
| Swing Bearing - Height | 29.7 in / 756 mm |
| Maximum Dig Height | 265.2 in / 6736 mm |
| Track Belt/Shoe Width | 17.7 in / 450 mm |
| O/A Track Width | 97.2 in / 2470 mm |
| Ground Clearance | 14 in / 356 mm |
| Maximum Reach | 281.1 in / 7141 mm |
| Tail Swing with Counterweight | 62.4 in / 1585 mm |
| Boom In Reach | 120.4 in / 3059 mm |
| Vertical Wall | 117.8 in / 2991 mm |
| Dig Depth | 161.7 in / 4108 mm |
| Stick Length | 71.8 in / 1820 mm |
| Boom Swing - Left | 23.8 in / 604 mm |
| Maximum Blade Height | 16.1 in / 408 mm |
| Maximum Blade Depth | 26 in / 671 mm |
| Note | *Boom Height when stick is pinned in transport position with no attachments. |
| Overall Shipping Length - without Counterweight | 266.7 in / 6774 mm |
| Overall Shipping Length - with Counterweight | 266.7 in / 6774 mm |
| Note (2) | ***With blade positioned at the rear of the machine. |
| Note (1) | **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position. |
| Height - Boom Transport - No Tools* | 95.7 in / 2430 mm |
| Height - Boom Working - With Tools** | 104.7 in / 2660 mm |
| Air Conditioning System | |
|---|---|
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes. |
| Sustainability | |
|---|---|
| Recyclability | 96% |
| Model | Working Width | Required Hydraulics | Overall Width |
|---|---|---|---|
| HMF210 | 39.4 in / 1000 mm | Standard Flow | 46.6 in / 1184 mm |
| Model | Width | Capacity | Weight |
|---|---|---|---|
| 330 mm (13 in) | 13 in / 330 mm | 3.5 ft³ / 99.09 l | 299.8 lb / 136 kg |
| 457 mm (18 in) | 18 in / 457 mm | 5.3 ft³ / 150.1 l | 332.9 lb / 151 kg |
| 610 mm (24 in) | 24 in / 610 mm | 8.1 ft³ / 229.39 l | 392.4 lb / 178 kg |
| 762 mm (30 in) | 30 in / 762 mm | 10.9 ft³ / 308.7 l | 456.4 lb / 207 kg |
| 914 mm (36 in) | 36 in / 914 mm | 13.7 ft³ / 387.89 l | 507.1 lb / 230 kg |
| Model | Drive Shaft Torque at Maximum Pressure | Drive Method | Mounting Bracket Design |
|---|---|---|---|
| A68 | 5034.6 lb/ft / 6826 N·m | Gerotor Motor - Double Planetary Reduction | 8 Ton Mini Excavator Pin On |
| Model | Width | Capacity | Weight |
|---|---|---|---|
| 1219 mm (48 in) | 48 in / 1219 mm | 11.6 ft³ / 328.79 l | 477.1 lb / 216.39 kg |
| 1372 mm (54 in) | 54 in / 1372 mm | 13.2 ft³ / 374.6 l | 517 lb / 234.5 kg |
| 1524 mm (60 in) | 60 in / 1524 mm | 14.8 ft³ / 420.5 l | 557.1 lb / 252.69 kg |
| Model | Overall Width | Working Width | Length |
|---|---|---|---|
| HM208 | 40.4 in / 1026 mm | 32.2 in / 818 mm | 28.1 in / 714 mm |
| HM210 | 48.3 in / 1226 mm | 39.8 in / 1012 mm | 28.1 in / 714 mm |
| Model | Width | Capacity | Weight |
|---|---|---|---|
| 1200 mm (47 in) | 47.2 in / 1200 mm | 14.5 ft³ / 410.6 l | 615.3 lb / 279.1 kg |
| 1500 mm (59 in) | 59.1 in / 1500 mm | 18.4 ft³ / 521 l | 761.9 lb / 345.6 kg |
| Model | Width | Capacity | Weight |
|---|---|---|---|
| 610 mm (24 in) | 24 in / 610 mm | 8.1 ft³ / 229.39 l | 427.7 lb / 194 kg |
| 762 mm (30 in) | 30 in / 762 mm | 10.9 ft³ / 308.7 l | 491.6 lb / 223 kg |
| Model | Weight | Width | Length |
|---|---|---|---|
| 8 Ton Mini Excavators Hydraulic | 211.6 lb / 96 kg | 14.6 in / 370 mm | 23.4 in / 595 mm |
| Model | Width | Capacity | Weight |
|---|---|---|---|
| 300 mm (12 in), Pin Lock | 11.8 in / 300 mm | 3.4 ft³ / 96 l | 249.1 lb / 113 kg |
| 406 mm (16 in), Pin Lock | 16 in / 406 mm | 4.2 ft³ / 120 l | 297.6 lb / 135 kg |
| 457 mm (18 in), Pin Lock | 18 in / 457 mm | 4.9 ft³ / 139 l | 304.2 lb / 138 kg |
| 610 mm (24 in), Pin Lock | 24 in / 610 mm | 7.3 ft³ / 207 l | 370.4 lb / 168 kg |
| 762 mm (30 in), Pin Lock | 30 in / 762 mm | 9.9 ft³ / 280 l | 443.1 lb / 201 kg |
| 914 mm (36 in), Pin Lock | 36 in / 914 mm | 12 ft³ / 340 l | 509.3 lb / 231 kg |
| Model | Width | Capacity | Weight |
|---|---|---|---|
| 406 mm (16 in), Pin Lock | 16 in / 406 mm | 5.7 ft³ / 160 l | 337.3 lb / 153 kg |
| 457 mm (18 in), Pin Lock | 18 in / 457 mm | 6.4 ft³ / 180 l | 357.1 lb / 162 kg |
| 610 mm (24 in), Pin Lock | 24 in / 610 mm | 9.2 ft³ / 260 l | 427.7 lb / 194 kg |
| 762 mm (30 in), Pin Lock | 30 in / 762 mm | 12.7 ft³ / 360 l | 489.4 lb / 222 kg |
| 914 mm (36 in), Pin Lock | 36 in / 914 mm | 16.2 ft³ / 460 l | 560 lb / 254 kg |
| Model | Shank Length | Weight | Overall Length |
|---|---|---|---|
| 861 mm (34 in) | 33.9 in / 861 mm | 235.9 lb / 107 kg | 42 in / 1066.09 mm |
| Model | Tip Force | Rotation | Jaw Opening |
|---|---|---|---|
| S308 | 43.3 Sh Ton / 385 kN | 360 Degrees | 9.4 in / 240 mm |
| Model | Impulse Force | Impact Frequency | Base Plate Width |
|---|---|---|---|
| CVP40 | 8992.36 lb / 40 kN | 2200 bpm | 23.2 in / 590 mm |
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