The Cat® 340 UHD provides optimum machine solutions for building demolition up to 8 stories. With its unique coupling system, you can switch between two lengths of Ultra High Demolition fronts and two types of Retrofit booms and sticks with no special tools in 15 minutes. You simply won’t find a better 50-ton class choice for demolition..
Operating Weight 122600 lb
Maximum Pin Height at Stick Nose 72.2 ft
Maximum Weight at Stick Nose 8160 lb
Engine Model Cat C9.3B
2-Piece Retrofit Boom in Cradle - R3.2 DB Stick 17440lb
Machine Weight - Retrofit Configuration 118600lb
Note (1) Hydraulic Variable Gauge undercarriage, 25 m (72'2") UHD front, 600 mm (24") Heavy Duty (HD) triple grouser shoes and 9.0 mt (19,842 lb) counterweight. No work tool.
Note (2) Hydraulic Variable Gauge undercarriage, Retrofit boom, R3.2DB (10'6") stick, General Duty (GD) 2.27 m³ (2.97 yd³) bucket, 600 mm (24") HD triple grouser shoes and 9.0 mt (19,842 lb) counterweight.
Operating Weight 122600lb
Retrofit Boom in Cradle - R2.8 DB Stick 13120lb
Retrofit Boom in Cradle - R3.2 DB Stick 13340lb
Retrofit Boom in Cradle - R3.9 DB Stick 13710lb
UHD in Cradle 18700lb
Maximum Height at Stick Nose in Max Reach Position 41.5ft
Maximum Pin Height at Stick Nose 72.2ft
Maximum Reach at Stick Nose 44.4ft
Maximum Weight at Stick Nose 8160lb
Maximum Working Pin Height at Stick Nose - 1/2 61ft
Maximum Working Reach at Stick Nose - 1/2 38.4ft
Note (1) 22 m (72' 2") UHD Front (Over-the-Front)
Biodiesel Capability Up to B20¹
Bore 5in
Displacement 568in³
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Engine Model Cat C9.3B
Engine Power - ISO 14396 347hp
Engine Power - ISO 14396 (DIN) 352hp (metric)
Net Power - ISO 9249 346hp
Net Power - ISO 9249 (DIN) 351hp (metric)
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,900 rpm. Advertised power is tested per the specified standard in effect at the time
Note (2) ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO
Stroke 6in
Main System - Maximum Flow 560 l/min (148 gal/min)
Maximum Pressure - Equipment 5076psi
Maximum Pressure - Equipment - Lift Mode 5511psi
Maximum Pressure - Swing 4264psi
Maximum Pressure - Travel 5076psi
Swing Speed 4.09r/min
Maximum Swing Torque 105000lbf·ft
Swing Speed 8r/min
Cooling System 10.5gal (US)
DEF Tank 21.1gal (US)
Engine Oil 8.5gal (US)
Final Drive - Each 2.1gal (US)
Fuel Tank Capacity 158.5gal (US)
Hydraulic System - Including Tank 145.3gal (US)
Hydraulic Tank 42.5gal (US)
Swing Drive 4.8gal (US)
Cab Height - With OPG 11.8ft
Counterweight Clearance 4.6ft
Ground Clearance 1.7ft
Machine Length - without Front and Counterweight 22.8ft
Machine Length - without Front, with Counterweight 23.3ft
Note (1) 22 m (72'2") UHD Front
Note (2) 600 mm (24") Track Shoes
Shipping Gauge - Retracted Position 7.8ft
Shipping Height - Top of Cab 11.1ft
Shipping Length 49.8ft
Tail Swing Radius 11.6ft
Track Length 18.9ft
Track Length to Center of Rollers 15.7ft
Track Width - Extended 13.1ft
Track Width - Retracted 9.8ft
Transport Width 10.7ft
Working Gauge - Extended Position 11.2ft
Bucket GD 2.27 m³ (2.97 yd³)
Bucket Digging Force - ISO 47160lbf
Maximum Digging Depth 16.1ft
Maximum Height at Stick Nose in Max Reach Position 7.6ft
Maximum Loading Height 34ft
Maximum Pin Height at Stick Nose 39.8ft
Maximum Reach - Ground Level 39.9ft
Maximum Reach at Stick Nose 34.8ft
Maximum Weight at Stick Nose 9260lb
Minimum Loading Height 15.8ft
Note 1 Straight - R3.2DB m (10' 6") Stick (Over-the-Front) - HVG Undercarriage
Stick Digging Force - ISO 37300lbf
Bucket GD 2.27 m³ (2.97 yd³)
Bucket Digging Force - ISO 47160lbf
Maximum Cutting Height 35.4ft
Maximum Digging Depth 21.4ft
Maximum Loading Height 24.9ft
Maximum Reach - Ground Level 36.7ft
Minimum Loading Height 10.4ft
Note 1 Bent - R3.2DB (10'6") Stick - HVG Undercarriage
Stick Digging Force - ISO 37300lbf
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 (2.2 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons).
Standard and optional equipment may vary. Consult your Cat dealer for details.
Tilt-up demolition cab with P5A laminated front and roof glass
High-resolution 254 mm (10") LCD touchscreen monitor
Heated and cooled seat with automatic adjustable suspension
Bluetooth® integrated radio
Auto bi-level air conditioner
Jog dial and shortcut keys for monitor control
Keyless push-to-start engine control
Height-adjustable console
Tilt-up left-side console
Cat Stick Steer
Auxiliary relay
Tilt rocker switch
Sky wiper switch
LED interior lights
Roller front sunscreen
P5A fixed windshield
VisionLink®
Remote Flash
Cat Grade with 2D
Cat Payload
Maintenance-free 1,000 CCA batteries (x 4)
Centralized electrical disconnect switch
LED lights - 1,800 lumens
Three selectable modes: Power, Smart, ECO
Auto engine speed control
Up to 4500 m (14,760 ft) altitude capability
Reversing fan
52° C (126° F) high-ambient cooling
-18° C (0° F) cold start capability
Double element air filter with integrated pre-cleaner
Boom lowering check valve
Stick lower check valve
Electronic main control valve
Heavy lift mode
Auto hydraulic oil warmup
Auto swing parking brake
High performance hydraulic return filter
Two-speed travel
2D E-Fence (swing)
Caterpillar One Key security system
Lockable external tool/storage box
Lockable door, fuel, and hydraulic tanks
Lockable fuel drain compartment
Lockable disconnect switch
Service platform with anti-skid plate
Rear and right-hand side cameras
Operator Protective Guards (OPG)
Integrated vehicle health management system
Grouped location of engine oil and fuel filters
Scheduled Oil Sampling (S·O·S℠) ports
Electric refueling pump with auto shutoff
9.0 mt (19,842 lb) counterweight
Full-length track guiding guards
Travel motor guard
Bottom guard
Standard and optional equipment may vary. Consult your Cat dealer for details.
22 m (72'2") UHD front
25 m (82'0") UHD front
Two-piece Retrofit Variable Adjustment boom
7.4 m (24'3") Retrofit boom
3.9 m (12'10") Retrofit stick (Europe, North America only)
3.2 m (10'6") Retrofit stick
2.8 m (9'2") Retrofit stick (Europe, North America only)
Advanced tool control, UHD
Bucket linkage, DB family
Bucket linkage, Dedicated, C family
Roller rear sunscreen
VisionLink Productivity
Operator Coaching (VisionLink subscription required)
Cat Advanced Payload
-32° C (-25° F) cold start capability
Cold start block heaters
Ether starting aid
SmartBoom™ with BLCV and Overload Warning Device for UHD front (Europe only)
Bio hydraulic oil capability
Combined two-way auxiliary circuits
High and medium-pressure auxiliary circuits
Quick coupler circuit
360° visibility
QuickEvac™ maintenance ready
Hydraulic Variable Gauge undercarriage
Fixed Gauge undercarriage
600 mm (24 in) double grouser track shoes
600 mm (24 in) HD triple grouser track shoes
700 mm (28 in) triple grouser track shoes
700 mm (28") HD triple grouser track shoes
