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Piscataway Campus 732-885-5555
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340 UHD Ultra High Demolition Hydraulic Excavator

340 UHD Ultra High Demolition Hydraulic Excavator

Operating Weight122600 lb
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.
Machine Weight – Retrofit Configuration118600 lb
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.
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Learn more about our 340 UHD Ultra High Demolition Hydraulic Excavator

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
122600lb
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.
Machine Weight - Retrofit Configuration
118600lb
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.
UHD in Cradle
18700lb
Retrofit Boom in Cradle - R3.9 DB Stick
13710lb
Retrofit Boom in Cradle - R3.2 DB Stick
13340lb
Retrofit Boom in Cradle - R2.8 DB Stick
13120lb
2-Piece Retrofit Boom in Cradle - R3.2 DB Stick
17440lb
Maximum Pin Height at Stick Nose
72.2ft
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
Maximum Height at Stick Nose in Max Reach Position
41.5ft
Maximum Reach at Stick Nose
44.4ft
Note (1)
22 m (72' 2") UHD Front (Over-the-Front)
Engine Model
Cat C9.3B
Net Power - ISO 9249
346hp
Net Power - ISO 9249 (DIN)
351hp (metric)
Engine Power - ISO 14396
347hp
Engine Power - ISO 14396 (DIN)
352hp (metric)
Bore
5in
Stroke
6in
Displacement
568in³
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100%
Main System - Maximum Flow
560 l/min (148 gal/min)
Maximum Pressure - Equipment
5076psi
Maximum Pressure - Equipment - Lift Mode
5511psi
Maximum Pressure - Travel
5076psi
Maximum Pressure - Swing
4264psi
Swing Speed
4.09r/min
Swing Speed
8r/min
Maximum Swing Torque
105000lbf·ft
Fuel Tank Capacity
158.5gal (US)
Cooling System
10.5gal (US)
Engine Oil
8.5gal (US)
Swing Drive
4.8gal (US)
Final Drive - Each
2.1gal (US)
Hydraulic System - Including Tank
145.3gal (US)
Hydraulic Tank
42.5gal (US)
DEF Tank
21.1gal (US)
Note (1)
22 m (72'2") UHD Front
Shipping Height - Top of Cab
11.1ft
Cab Height - With OPG
11.8ft
Shipping Length
49.8ft
Tail Swing Radius
11.6ft
Counterweight Clearance
4.6ft
Ground Clearance
1.7ft
Track Length
18.9ft
Track Length to Center of Rollers
15.7ft
Working Gauge - Extended Position
11.2ft
Shipping Gauge - Retracted Position
7.8ft
Transport Width
10.7ft
Machine Length - without Front, with Counterweight
23.3ft
Machine Length - without Front and Counterweight
22.8ft
Track Width - Extended
13.1ft
Track Width - Retracted
9.8ft
Note (2)
600 mm (24") Track Shoes
Note 1
Straight - R3.2DB m (10' 6") Stick (Over-the-Front) - HVG Undercarriage
Bucket
GD 2.27 m³ (2.97 yd³)
Maximum Pin Height at Stick Nose
39.8ft
Maximum Weight at Stick Nose
9260lb
Maximum Height at Stick Nose in Max Reach Position
7.6ft
Maximum Reach at Stick Nose
34.8ft
Maximum Digging Depth
16.1ft
Maximum Reach - Ground Level
39.9ft
Maximum Loading Height
34ft
Minimum Loading Height
15.8ft
Bucket Digging Force - ISO
47160lbf
Stick Digging Force - ISO
37300lbf
Note 1
Bent - R3.2DB (10'6") Stick - HVG Undercarriage
Bucket
GD 2.27 m³ (2.97 yd³)
Maximum Digging Depth
21.4ft
Maximum Reach - Ground Level
36.7ft
Maximum Cutting Height
35.4ft
Maximum Loading Height
24.9ft
Minimum Loading Height
10.4ft
Bucket Digging Force - ISO
47160lbf
Stick Digging Force - ISO
37300lbf
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 conta
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
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

P232 Secondary Pulverizer

MP332 Universal Jaw

MP324 Universal Jaw

MP324 Tank Shear

MP332 Tank Shear

MP318 Universal Jaw

MP324 Shear Jaw

MP324 Shear Jaw

MP318 Shear Jaw

MP324 Pulverizer Jaw

MP324 Pulverizer Jaw

MP318 Pulverizer Jaw

MP332 Demolition Jaw

MP324 Demolition Jaw

MP318 Demolition Jaw

MP332 Concrete Cutter Jaw

MP324 Concrete Cutter Jaw

H180 S Hammer

H160 S Hammer

H140 S Hammer

H180 GC S Hammer

H160 GC S Hammer

CVP110
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