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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..

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Operating Weight
122600lb
Note (1)
Hydraulic Variable Gauge undercarriage, 22 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
Engine Power – ISO 14396 (DIN)
351hp (metric)
Engine Power – ISO 14396
347hp
Net Power – ISO 9249 (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) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO
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
105000ft·lbf
Fuel Tank Capacity
159gal (US)
Cooling System
11gal (US)
Engine Oil
9gal (US)
Swing Drive
5gal (US)
Final Drive – Each
2gal (US)
Hydraulic System – Including Tank
145gal (US)
Hydraulic Tank
43gal (US)
DEF Tank
21gal (US)
Note (1)
22 m (72’2″) UHD Front
Shipping Height – Top of Cab
11.1ft
Cab Height – With OPG
11.8ft
Shipping Length
49.9ft
Tail Swing Radius
11.6ft
Counterweight Clearance
4.6ft
Ground Clearance
1.7ft
Track Length
18.9ft
Track Length to Center of Rollers
15.6ft
Working Gauge – Extended Position
11.1ft
Shipping Gauge – Retracted Position
7.8ft
Transport Width
10.7ft
Machine Length – without Front, with Counterweight
23.3ft
Machine Length – without Front and Counterweight
22.9ft
Track Width – Extended
13.1ft
Track Width – Retracted
9.8ft
Note (2)
600 mm (24″) Track Shoes
Note 1
Straight – R3.2 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
15.7ft
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 (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).
  • 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
    • Premium heated and cooled auto adjustable suspension seat
    • 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
    • Stability monitoring system
    • Electronic pitch and roll indicator
    • Travel direction indicator
    • Operator Coaching
    • Electronic joystick pattern changer
    • Cat Grade with 2D and offset memory (Retrofit boom only)
    • Cat Payload (Retrofit boom only)
  • Electrical System
    • Maintenance-free 1,000 CCA batteries (x 4)
    • Centralized electrical disconnect switch
    • LED lights
  • Engine
    • Three selectable modes: Power, Smart, ECO
    • Auto engine speed control
    • Up to 4500 m (14,760 ft) altitude capability
    • Reverse 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 (BLCV) for UHD front
    • Stick lower check valve (SLCV) for UHD front
    • Electronic main control valve
    • Heavy lift mode
    • Auto hydraulic oil warmup
    • Auto swing parking brake
    • High Performance hydraulic return filter
    • Two-speed travel
    • Bio hydraulic oil capability
  • Safety And Security
    • 2D E-Fence (swing)
    • Cat 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 and recessed bolts
    • 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
  • 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
    • 3.2 m (10’6″) Retrofit stick
    • 2.8 m (9’2″) Retrofit stick
    • Advanced tool control, UHD
    • Cradle for UHD front parts
    • Cradle for Retrofit front parts
  • Cab
    • Roller rear sunscreen
  • Cat Technology
    • VisionLink Productivity
  • Electrical System
    • Premium surround lighting package
  • 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
    • 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
    • Electric refueling pump with auto shutoff
  • 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

RC20

RC20

RC15

Cat® Detect with Rear Camera

Cat® Detect with Surround Cameras

Cat® Detect with Smart Camera

Cat® Seat Belt Reminder

S3035 Rotating Scrap & Demolition Shear

S3025 Rotating Scrap & Demolition Shear

P232 Secondary Pulverizer

P332 Primary Pulverizer

P324 Primary Pulverizer

P318 Primary Pulverizer

MP332 Universal Jaw

MP324 Universal Jaw

MP318 Universal Jaw

MP332 Tank Shear

MP324 Tank Shear

MP324 Shear Jaw

MP324 Shear Jaw

MP318 Shear Jaw

MP324 Pulverizer Jaw

MP324 Pulverizer Jaw

MP318 Pulverizer Jaw

MP324 Demolition Jaw

MP332 Demolition Jaw

MP318 Demolition Jaw

MP332 Concrete Cutter Jaw

MP318 Concrete Cutter Jaw

MP324 Concrete Cutter Jaw

HM6015 Dedicated Bite Limiter Forestry Mulcher

HM5515 Standard Forestry Mulcher

H180 S Hammer

H160 S Hammer

H140 S Hammer

H180 GC S Hammer

H160 GC S Hammer

H140 GC S Hammer

GSH440-1550-5

GSH440-1150-S

GSH455-H-4-2000-S

GSH455-H-4-1500-S

GSH455-H-4-1000-S

G345 Demolition & Sorting Grapple

G332 Demolition & Sorting Grapple

G332 Demolition & Sorting Grapple

G324 Demolition & Sorting Grapple

CTV30-3800-BOCE

CTV30-3400-BOCE

CTV30-2700-BOCE

CTV30-2500-BOCE

CTV30-1900-BOCE

CTV30-2300-BOCE

CTV30-3800

CTV30-3100

CTV30-2900

CTV30-2300

CTV30-2700

CTV30-1900

CTV30-1700

CTV20-2300-BOCE

CTV20-1500-BOCE

CTV20-2700

CTV20-2300

CTV20-1700

CTV20-1500

CTV20-1700

CTV20-1300

S80 S Type Excavator Coupler: 573-3171

Hydraulic Connecting S Type Coupler HCS80: 583-0212

Hydraulic Connecting S Type Coupler HCS80: 583-0203

Hydraulic Connecting S Type Coupler HCS70/55: 598-7849

Hydraulic Connecting S Type Coupler HCS70/55: 582-9976

Hydraulic Connecting S Type Coupler HCS70/55: 582-9886

Hydraulic Connecting S Type Coupler HCS70: 598-7847

Hydraulic Connecting S Type Coupler HCS70: 580-0407

Hydraulic Connecting S Type Coupler HCS70: 582-8929

CVP110

Severe Duty Bucket 900 mm (36 in)

Severe Duty Bucket 1200 mm (48 in)

Severe Duty Bucket 1750 mm (69 in)

Severe Duty Bucket 1500 mm (59 in)

Severe Duty Bucket 1350 mm (54 in)

Severe Duty Bucket 1200 mm (48 in)

Severe Duty Bucket 1050 mm (42 in)

Severe Duty Bucket 900 mm (36 in)

Severe Duty Bucket 750 mm (30 in)

Severe Duty Bucket 750 mm (30 in)

Heavy Duty Bucket 1850 mm (72 in)

Heavy Duty Bucket 1650 mm (66 in)

Heavy Duty Bucket 1650 mm (66 in)

Heavy Duty Power Bucket 1500 mm (60 in)

Heavy Duty Bucket 1500 mm (60 in)

Heavy Duty Bucket 1350 mm (54 in)

Heavy Duty Bucket 1200 mm (48 in)

Heavy Duty Power Bucket 1350 mm (54 in)

Heavy Duty Power Bucket 1200 mm (48 in)

Heavy Duty Bucket 1050 mm (42 in)

Heavy Duty Bucket 1050 mm (42 in)

Heavy Duty Bucket 900 mm (36 in)

Heavy Duty Bucket 900 mm (36 in)

Heavy Duty Power Bucket 900 mm (36 in)

Heavy Duty Bucket 750 mm (30 in)

General Duty Bucket 1650 mm (66 in)

General Duty Bucket 1350 mm (54 in)

General Duty Bucket 1200 mm (48 in)

General Duty Bucket 1050 mm (42 in)

General Duty Bucket 900 mm (36 in)

General Duty Bucket 750 mm (30 in)

Extreme Duty Bucket 1550 mm (61 in)

Extreme Duty Bucket 1200 mm (48 in)

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We serve to build and power our community for a better future.

  • Provide a safe & meaningful work environment
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