312E Hydraulic Excavator Engine Engine Model Net Power – SAE J1349 Gross Power – SAE J1995 Cat® C4.4 ACERT™ 68 kW 91 hp 71 kW 95 hp Drive Maximum Travel Speed Maximum Drawbar Pull Weight Minimum Operating Weight Maximum Operating Weight 5.5 km/h 114 kN 3.
Introduction Since its introduction in the 1990s, the 300 Series family of excavators has become the industry standard in general, quarry, and heavy construction applications. The all-new E Series and the 312E will continue that trend-setting standard. The 312E meets today’s U.S. EPA Tier 4 Interim emission standards. It is also built with several new fuel-saving and comfort-enabling features and benefits that will delight owners and operators.
Engine Reduced emissions, economical and reliable performance Cat® C4.4 ACERT™ Engine The Cat C4.4 ACERT engine delivers the same level of performance using significantly less fuel than the previous series engine. Emissions Solution Equipped to meet U.S. EPA Tier 4 Interim emission standards, the 312E’s C4.4 ACERT engine features an aftertreatment regeneration solution that ensures the machine works as normal with no operator intervention needed. Biodiesel-Ready Fuel System The C4.
Operator Station Comfort and convenience to keep people productive Seats The seat range includes air suspension, heated, and air cooled options. All seats include a reclining back, upper and lower seat slide adjustments, and height and tilt angle adjustments to meet operator needs for comfort and productivity. Controls The right and left joystick (1) consoles can be adjusted to meet individual preferences, improving operator comfort and productivity during the course of a day.
Hydraulics Power to move more dirt, rock, and debris with speed and precision Main Control Valve and Auxiliary Valves The 312E uses a high-pressure system to tackle the toughest of work in short order. The machine features a highly efficient and simple main control valve to improve fuel consumption; it also allows for greater tool versatility.
Structures & Undercarriage Built to work in rugged environments Frame The upper frame includes reinforced mountings to support the Roll-Over Protective Structure (ROPS) cab; the lower frame is reinforced to increase component durability. Undercarriage Long undercarriage supports various work applications. The track rollers are a double solid-pin-type design to improve reliability compared to the single solid-pin-type design.
Front Linkage Made for high stress and long service life Booms and Sticks The 312E is offered with a reach boom and three stick configurations: R2.5 m (8'2"), R2.8 m (9'2"), and R3.0 m (9'10"). Also, a new thumb-ready stick with factory brackets and structural reinforcement to attach a Cat hydraulic thumb to the machine is an available option. Each boom and stick is built with internal baffle plates for added durability, and each undergoes ultrasound inspection to ensure weld quality and reliability.
Work Tools Dig, hammer, rip, and cut with confidence An extensive range of Cat Work Tools for the 312E includes buckets, compactors, grapples, scrap and demolition shears, hammers and thumbs. Each is designed to optimize the versatility and performance of your machine. Quick Couplers Quick couplers allow one person to change work tools in seconds for maximum performance and flexibility on a job site.
Durability Categories Suitable for Any Situation Caterpillar offers standard bucket categories for excavators. Each category is based on intended bucket durability when used in recommended applications and materials. Each bucket durability is available as pin-on or can be used with a quick coupler. General Duty (GD) GD buckets are for digging in low-impact, low-abrasion material such as dirt, loam, and mixed compositions of dirt and fine gravel.
1 Integrated Technologies Solutions that make work easier and more efficient Cat® Grade Control Depth and Slope This optional system combines traditional machine control and guidance with standard factory-installed and calibrated components, making the system ready to go to work the moment it leaves the factory.
Serviceability Fast, easy and safe access built in Service Doors Wide service doors feature sturdier hinges and latches and a new screen design to help prevent debris entry; a one-piece hood (1) provides easier access to the engine and cooling compartments. Compartments The radiator (2), pump (3), and air cleaner compartments provide easy access to major components. The fresh air filter is located on the side of the cab to make it easy to reach and replace as needed.
Safety Features to help protect people ROPS Cab The ROPS-certified cab (1) allows an Operator Protective Guard to be bolted directly to it. Sound Proofing Improved sealing and cab roof lining lower noise levels inside the cab significantly during machine operation. Anti-Skid Plates The surface of the upper structure and the top of the storage box area are covered with anti-skid plates to help prevent service personnel and operators from slipping during maintenance.
Complete Customer Care Service you can count on Product Support Cat dealers utilize a worldwide parts network to maximize your machines’ uptime. Plus they can help you save money with Cat remanufactured components. Machine Selection What are the job requirements and machine attachments? What production is needed? Your Cat dealer can provide recommendations to help you make the right machine choices. Purchase Consider financing options and day-to-day operating costs.
Sustainability Generations ahead in every way • The C4.4 ACERT engine, along with the Cat Clean Emissions Module (CEM), meets U.S. EPA Tier 4 Interim emission standards. • Even when operating in high horsepower and high production applications, the 312E performs a similar amount of work while burning less fuel than the previous D Series model. This means more efficiency, less resources consumed, and fewer emissions.
312E Hydraulic Excavator Specifications Engine Engine Model Net Power – SAE J1349 Gross Power – SAE J1995 Bore Stroke Displacement Hydraulic System Cat® C4.4 ACERT™ 68 kW 91 hp 71 kW 95 hp 105 mm 127 mm 4.4 L 4.13 in 5.00 in 269 in3 Weights Minimum Operating 13 500 kg Weight* Maximum Operating 15 000 kg Weight** 29,770 lb 33,080 lb **4.65 m (15'3") boom, 2.5 m (8'10") stick, 2.2 mt (2.4 t) counterweight, 0.65 m3 (0.84 yd3) bucket, and 500 mm (20") shoes. **4.65 m (15'3") boom, 3.
312E Hydraulic Excavator Specifications Dimensions All dimensions are approximate. 3 9 1 10 6 4 5 7 8 2 Reach Boom 4.65 m (15'3") Stick 1 Shipping Height* Shipping Height at Boom Top Shipping Height with Guard Rail Shipping Height with Top Guard 2 Shipping Length Long Undercarriage Long Undercarriage with Blade R2.8 (9'2") R2.
Working Ranges All dimensions are approximate. Feet Meters 35 11 10 30 25 9 8 7 20 15 6 5 3 4 10 5 3 4 2 1 0 5 0 2 1 5 10 R3.0 (9'10") R2.8 (9'2") R2.5 (8'2") 2 7 3 6 1 4 15 20 5 6 2440 mm (8'0") 7 25 8 11 35 10 9 30 8 7 25 6 20 5 4 15 3 10 2 1 5 0 1 Meters 0 Feet Reach Boom 4.65 m (15'3") Stick 1 Maximum Digging Depth 2 Maximum Reach at Ground Level R3.0 (9'10") R2.8 (9'2") R2.
312E Hydraulic Excavator Specifications Operating Weight and Ground Pressure Long Undercarriage without Blade 770 mm (30") Triple Grouser Shoes 700 mm (28") Triple Grouser Shoes 600 mm (24") Triple Grouser Shoes 500 mm (20") Triple Grouser Shoes kg (lb) kPa (psi) kg (lb) kPa (psi) kg (lb) kPa (psi) kg (lb) kPa (psi) Reach Boom – 4.65 m (15'3") R3.0 (9'10") 14 200 (31,310) 27.5 (3.98) 14 100 (31,090) 30.0 (4.35) 13 800 (30,430) 34.2 (4.97) 13 500 (29,770) 40.2 (5.83) R2.8 (9'2") 14 200 (31,310) 27.5 (3.
Bucket and Stick Forces Reach Boom 4.65 m (15'3") Stick General Duty Bucket Bucket Digging Force (ISO) Stick Digging Force (ISO) Bucket Digging Force (SAE) Stick Digging Force (SAE) Severe Duty Bucket Bucket Digging Force (ISO) Stick Digging Force (ISO) Bucket Digging Force (SAE) Stick Digging Force (SAE) R3.0 (9'10") R2.8 (9'2") R2.
312E Hydraulic Excavator Specifications Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R3.0 (9'10") Shoes – 700 mm (28") triple grouser with step 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft 7.5 m/25.0 ft m ft 7.5 m 25.0 ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.0 ft –4.5 m –15.
Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R2.5 (8'2") Shoes – 700 mm (28") triple grouser with step 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft m ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.
312E Hydraulic Excavator Specifications Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R2.8 (9'2") Shoes – 600 mm (24") triple grouser 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft m ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.0 ft –4.5 m –15.
Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R3.0 (9'10") Shoes – 500 mm (20") triple grouser 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft 7.5 m/25.0 ft m ft 7.5 m 25.0 ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.0 ft –4.5 m –15.
312E Hydraulic Excavator Specifications Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R2.5 (8'2") Shoes – 500 mm (20") triple grouser 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft m ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.
Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R2.8 (9'2") Shoes – 700 mm (28") triple grouser – Blade Down 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft m ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.0 ft –4.5 m –15.
312E Hydraulic Excavator Specifications Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R3.0 (9'10") Shoes – 600 mm (24") triple grouser – Blade Down 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft 7.5 m/25.0 ft m ft 7.5 m 25.0 ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.0 ft –4.5 m –15.
Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R2.5 (8'2") Shoes – 600 mm (24") triple grouser – Blade Down 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft m ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.
312E Hydraulic Excavator Specifications Reach Boom Lift Capacities Load Point Height Load at Maximum Reach Load Radius Over Front Boom – 4.65 m (15'3") Counterweight – 2.2 mt (2.4 t) Stick – R2.8 (9'2") Shoes – 500 mm (20") triple grouser – Blade Down 1.5 m/5.0 ft 3.0 m/10.0 ft 4.5 m/15.0 ft Load Radius Over Side Bucket – None 6.0 m/20.0 ft m ft 6.0 m 20.0 ft 4.5 m 15.0 ft 3.0 m 10.0 ft 1.5 m 5.0 ft Ground Line –1.5 m –5.0 ft –3.0 m –10.0 ft –4.5 m –15.
Work Tool Offering Guide* Boom Type Stick Size Hydraulic Hammer Mobile Scrap and Demolition Shear Compactor (Vibratory Plate) Contractors’ Grapple Trash Grapple Thumbs Center-Lock Pin Grabber Coupler Dedicated Quick Coupler Reach Boom R3.0 (9'10") H110Es H115Es S320B** CVP75 G112B R2.8 (9'2") H110Es H115Es S320B** CVP76 G112B R2.5 (8'2") H110Es H115Es S320B** CVP75 G112B These work tools are available for the 312E. Consult your Cat dealer for proper match.
312E Hydraulic Excavator Specifications Bucket Specifications and Compatibility Width Capacity Weight Fill mm in m3 yd3 kg lb % 450 18 0.20 0.27 276 608 100% 600 24 0.31 0.40 326 719 100% 750 30 0.41 0.54 374 823 100% 900 36 0.53 0.69 423 932 100% 1050 42 0.65 0.84 469 1,034 100% Reach Boom R3.0 (9'10") R2.8 (9'2") R2.5 (8'2") R3.0 (9'10") Thumb* X X X X Without Quick Coupler General Duty (GD) Severe Duty (SD) 1200 48 0.76 1.
2E Standard Equipment Standard equipment may vary. Consult your Cat dealer for details. ENGINE C4.
312E Optional Equipment Optional equipment may vary. Consult your Cat dealer for details.
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312E Hydraulic Excavator For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.cat.com © 2012 Caterpillar Inc. All rights reserved Materials and specifications are subject to change without notice. Featured machines in photos may include additional equipment. See your Cat dealer for available options. CAT, CATERPILLAR, SAFETY.CAT.
