New CAT Equipment
340 UHD Ultra High Demolition Hydraulic Excavator
Get a Quote
MAXIMIZE MACHINE UTILIZATION
Hydraulic quick disconnect requires no tools to swap booms in 15 minutes; choose your front - work up to 22 m with a 3.7 T tool (72 ft with 8,160 lb tool) or up to 25 m with a 3.3 T tool (82 ft with 7,275 lb tool) front or basement to 2 story work and truckloading with Retrofit.
MAXIMIZE JOBSITE EFFICIENCY
Variable gauge undercarriage provides excellent stability extended and ease of transportation retracted.
COMFORT & SAFETY
Deluxe cab tilts 30 degrees for a more ergonomic operator station includes P5A high resistance glass for safety and premium seat for comfort while 254 mm (10 in) color touchscreen indicates easy to read stability monitoring system information.
Learn more about the 340 UHD Ultra High Demolition Hydraulic Excavator
-
Air Conditioning System
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system contains 1.000 kg (2.205lb.) of refrigerant, which has a CO2 equivale of 1.430 metric tonnes (1.576 tons). If equipped with R1234yf (Global Warming Potential = 0.501), the system contains 0.790 kg (1.742 lb.) of refrigerant, which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons). -
Dimensions
Cab Height - With OPG
11.8 ftCounterweight Clearance
4.6 ftGround Clearance
1.7 ftMachine Length - without Front and Counterweight
22.8 ftMachine Length - without Front, with Counterweight
23.3 ftNote (1)
22 m (72'2") UHD FrontNote (2)
600 mm (24") Track ShoesShipping Gauge - Retracted Position
7.8 ftShipping Height - Top of Cab
11.1 ftShipping Length
49.8 ftTail Swing Radius
11.6 ftTrack Length
18.9 ftTrack Length to Center of Rollers
15.7 ftTrack Width - Extended
13.1 ftTrack Width - Retracted
9.8 ftTransport Width
10.7 ftWorking Gauge - Extended Position
11.2 ft -
Engine
Biodiesel Capability
Up to B20¹Bore
5 inDisplacement
568 in³Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.Engine Model
Cat C9.3BEngine Power - ISO 14396
347 hpEngine Power - ISO 14396 (DIN)
352 hp (metric)Net Power - ISO 9249
346 hpNet Power - ISO 9249 (DIN)
351 hp (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 of manufacture.Note (2)
¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).Stroke
6 in -
Hydraulic System
Main System - Maximum Flow
560 l/min (148 gal/min)Maximum Pressure - Equipment
5076 psiMaximum Pressure - Equipment - Lift Mode
5511 psiMaximum Pressure - Swing
4264 psiMaximum Pressure - Travel
5076 psi -
Service Refill Capacities
Cooling System
10.5 gal (US)DEF Tank
21.1 gal (US)Engine Oil
8.5 gal (US)Final Drive - Each
2.1 gal (US)Fuel Tank Capacity
158.5 gal (US)Hydraulic System - Including Tank
145.3 gal (US)Hydraulic Tank
42.5 gal (US)Swing Drive
4.8 gal (US) -
Swing Mechanism
Maximum Swing Torque
105000 lbf·ftSwing Speed
8 r/min -
Swing Mechanism - UHD Fronts
Swing Speed
4.09 r/min -
Weights
2-Piece Retrofit Boom in Cradle - R3.2 DB Stick
17440 lbMachine Weight - Retrofit Configuration
118600 lbNote (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
122600 lbRetrofit Boom in Cradle - R2.8 DB Stick
13120 lbRetrofit Boom in Cradle - R3.2 DB Stick
13340 lbRetrofit Boom in Cradle - R3.9 DB Stick
13710 lbUHD in Cradle
18700 lb -
Working Ranges and Forces
Maximum Height at Stick Nose in Max Reach Position
41.5 ftMaximum Pin Height at Stick Nose
72.2 ftMaximum Reach at Stick Nose
44.4 ftMaximum Weight at Stick Nose
8160 lbMaximum Working Pin Height at Stick Nose - 1/2
61 ftMaximum Working Reach at Stick Nose - 1/2
38.4 ftNote (1)
22 m (72' 2") UHD Front (Over-the-Front) -
Working Ranges and Forces - Retrofit Boom - Bent
Bucket
GD 2.27 m³ (2.97 yd³)Bucket Digging Force - ISO
47160 lbfMaximum Cutting Height
35.4 ftMaximum Digging Depth
21.4 ftMaximum Loading Height
24.9 ftMaximum Reach - Ground Level
36.7 ftMinimum Loading Height
10.4 ftNote 1
Bent - R3.2DB (10'6") Stick - HVG UndercarriageStick Digging Force - ISO
37300 lbf -
Working Ranges and Forces - Retrofit Boom - Straight
Bucket
GD 2.27 m³ (2.97 yd³)Bucket Digging Force - ISO
47160 lbfMaximum Digging Depth
16.1 ftMaximum Height at Stick Nose in Max Reach Position
7.6 ftMaximum Loading Height
34 ftMaximum Pin Height at Stick Nose
39.8 ftMaximum Reach - Ground Level
39.9 ftMaximum Reach at Stick Nose
34.8 ftMaximum Weight at Stick Nose
9260 lbMinimum Loading Height
15.8 ftNote 1
Straight - R3.2DB m (10' 6") Stick (Over-the-Front) - HVG UndercarriageStick Digging Force - ISO
37300 lbf
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
- 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
CAT TECHNOLOGY
- VisionLink™
- Remote Flash
- Cat Grade with 2D
- Cat Payload
ELECTRICAL SYSTEM
- Maintenance-free 1,000 CCA batteries (x 4)
- Centralized electrical disconnect switch
- LED lights - 1,800 lumens
ENGINE
- 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
HYDRAULIC SYSTEM
- 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
SAFETY AND SECURITY
- 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)
SERVICE AND MAINTENANCE
- 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
UNDERCARRIAGE AND STRUCTURES
- 9.0 mt (19,842 lb) counterweight
- Full-length track guiding guards
- Travel motor guard
- Bottom guard
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
BOOMS AND STICKS
- 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
CAB
- Roller rear sunscreen
CAT TECHNOLOGY
- Operator Coaching (VisionLink subscription required)
- Cat Advanced Payload
ENGINE
- -32° C (-25° F) cold start capability
- Cold start block heaters
- Ether starting aid
HYDRAULIC SYSTEM
- 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
SAFETY AND SECURITY
- 360° visibility
SERVICE AND MAINTENANCE
- QuickEvac™ maintenance ready
UNDERCARRIAGE AND STRUCTURES
- 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