340 UHD
Demolition work has never been easier than with the Cat® 340 UHD Excavator. Reach higher with larger attachment capabilities to maximize performance. Enjoy the versatility, precision, and efficiency offered by standard Cat technologies. Combined with a stability monitoring system and an Operator Protective Guards (OPG) cab, the 340 UHD keeps you working longer and safer.
Engine Model
Cat C9.3B
Net Power - ISO 9249
346 HP
Net Power - ISO 9249 (DIN)
351 hp (metric)
DOWNLOAD TECHNICAL SPECIFICATIONS
Specification
Value
Engine Model
Cat C9.3B
Net Power - ISO 9249
346 HP
Net Power - ISO 9249 (DIN)
351 hp (metric)
Engine Power - ISO 14396
347 HP
Engine Power - ISO 14396 (DIN)
352 hp (metric)
Bore
5 in
Stroke
6 in
Displacement
568 in³
Biodiesel Capability
Up to B20¹
Emissions
Emits equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
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 engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 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. *For use of blends higher than 20% biodiesel, consult your Cat dealer. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.
Specification
Value
Main System - Maximum Flow
560 l/min (148 gal/min)
Maximum Pressure - Equipment
5076 psi
Maximum Pressure - Equipment - Lift Mode
5511 psi
Maximum Pressure - Travel
5076 psi
Maximum Pressure - Swing
4264 psi
Specification
Value
Swing Speed
4.09 r/min
Specification
Value
Swing Speed
8 r/min
Maximum Swing Torque
105000 ft·lbf
Specification
Value
Operating Weight
122100 lb
Note (1)
Hydraulic Variable Gauge undercarriage, 25 m (82'0") UHD front, 600 mm (24") triple grouser shoes and 9.0 mt (19,842 lb) counterweight. No work tool.
Machine Weight - Retrofit Configuration
118800 lb
Note (2)
Hydraulic Variable Gauge undercarriage, Retrofit boom, R3.9 m DB (12'10") stick, HD 1.88 m³ (2.46 yd³) bucket, 600 mm (24") triple grouser shoes, 9.0 mt (19,842 lb) counterweight.
UHD in Cradle
20360 lb
Retrofit Boom in Cradle - R3.2 DB Stick
13340 lb
Retrofit Boom in Cradle - R3.9 DB Stick
13710 lb
2-piece Retrofit boom in cradle - R3.2 DB stick
17440 lb
Specification
Value
Fuel Tank Capacity
158.5 gal (US)
Cooling System
10.5 gal (US)
Engine Oil
8.5 gal (US)
Swing Drive
4.8 gal (US)
Final Drive - Each
2.1 gal (US)
Hydraulic System - Including Tank
145.3 gal (US)
Hydraulic Tank
42.5 gal (US)
Specification
Value
Note (1)
25 m (82'0") UHD Front
Shipping Height - Top of Cab
11.1 ft
Cab Height - With OPG
11.9 ft
Shipping Length
59.6 ft
Tail Swing Radius
11.6 ft
Counterweight Clearance
4.6 ft
Ground Clearance
1.7 ft
Track Length
18.9 ft
Track Length to Center of Rollers
15.7 ft
Shipping Gauge - Retracted Position
7.1 ft
Working Gauge - Extended Position
11.2 ft
Transport Width
10.7 ft
Machine Length - without Front, with Counterweight
23.3 ft
Machine Length - without Front and Counterweight
22.1 ft
Track Width - Extended
13.1 ft
Track Width - Retracted
9.1 ft
Note (2)
600 mm (24") Track Shoes
Specification
Value
Maximum Pin Height at Stick Nose
82 ft
Maximum Weight at Stick Nose
7300 lb
Maximum Working Pin Height at Stick Nose - 1/2
69.8 ft
Maximum Working Reach at Stick Nose - 1/2
42.8 ft
Maximum Height at Stick Nose in Max Reach Position
52.2 ft
Maximum Reach at Stick Nose
43.8 ft
Note (1)
25 m (82' 0") UHD Front (Over-the-Front)
Specification
Value
Note 1
Straight - R3.9 m DB (12' 10") stick (Over-the-Front)
Bucket
HD 1.88 m³ (2.46 yd³)
Maximum Pin Height at Stick Nose
41.1 ft
Maximum Weight at Stick Nose
9300 lb
Maximum Height at Stick Nose in Max Reach Position
7.6 ft
Maximum Reach at Stick Nose
37.2 ft
Maximum Digging Depth
18.5 ft
Maximum Reach - Ground Level
42.3 ft
Maximum Cutting Height
47.7 ft
Maximum Loading Height
35.9 ft
Minimum Loading Height
13.5 ft
Bucket Digging Force - ISO
47160 lbf
Stick Digging Force - ISO
32440 lbf
Specification
Value
Note 1
Bent - R3.9 m DB (12' 10") stick
Bucket
HD 1.88 m³ (2.46 yd³)
Maximum Digging Depth
23.8 ft
Maximum Reach - Ground Level
39.1 ft
Maximum Cutting Height
36.7 ft
Maximum Loading Height
26.1 ft
Minimum Loading Height
8 ft
Bucket Digging Force - ISO
47160 lbf
Stick Digging Force - ISO
32440 lbf
        
  • Cab Monitor Improvements.
        
  1. Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
  2.     
  3. Identify apps quickly with a grid list view, abbreviated app names, and categorized menu options.
  4.     
  5. A notification center keeps important information visible to the operator, and displays messages without shrinking the camera view.
  6.     
  7. Color coded notifications set critical messages apart from the rest.
  8.     
  9. Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 08C
        
  • High fuel efficiency ensures more work per unit of fuel.
  •     
  • The C9.3B engine and electrohydraulic system will power through all different types of material.
  •     
  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments, including the largest attachments needed for demolition work.
  •     
  • Achieve higher vertical reach up to 22 m (72'2") or 25 m (82'0") with a UHD boom.
  •     
  • Match the excavator to the job with three power modes – Smart, Power, and Eco. Smart mode automatically matches engine and hydraulic power to digging conditions, providing maximum power when needed and reducing power when it isn't to help save fuel. Power mode is maximum power all the time. Eco mode reduces engine speed and keeps it constant to reduce fuel consumption.
  •     
  • The high-efficiency hydraulic fan cools the engine on demand to help reduce fuel consumption; standard reverse function makes it easy to keep cores clean.
        
  • Standard Cat Grade with 2D with a retrofit boom indicates depth and slope on the monitor with auditory alerts.
  •     
  • Cat Payload onboard weighing helps you achieve precise load targets to improve your operating efficiency with a retrofit boom. Pick up a load of material – with either a bucket or grapple – and get a real-time weight estimate without even swinging.
  •     
  • Combine Payload with VisionLink® and remotely manage your production targets. The monitor’s USB port lets you download results from one shift all the way up to 30 days of work, so you can manage your progress without needing an internet connection or VisionLink subscription.
  •     
  • The stability monitoring system continuously informs operators of work tool position within the safe working range and warns when approaching the stability limit.
  •     
  • Know the excavator’s exact position relative to GPS and GLONASS systems. The machine automatically compensates for excavator pitch and roll caused by sloping ground conditions.
  •     
  • VisionLink provides actionable data insights for all assets - regardless of fleet size or equipment manufacturer.* Review equipment data from your desktop or mobile device to maximize uptime and optimize assets. Dashboards provide information such as hours, miles, location, idle time, and fuel utilization. Make informed decisions that lower costs, simplify maintenance, and improve safety and security on your jobsite.
  •     
  • VisionLink Productivity gathers and summarizes machine telematics and jobsite data from all your equipment – regardless of the manufacture.* View actionable information such as idle time, fuel burn, location, payload, load counts, total cycles, and more to improve machine efficiency, productivity, and utilization. Access data anywhere via a mobile, tablet, or desktop device - on or off the jobsite.
  •     
  • Remote Flash is a mobile application that allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency.

*Data field availability can vary by equipment manufacturer.
        
  • Reinforced booms, sticks, and frame make the machine more durable and built to last.
  •     
  • Standard high-ambient temperature capability is 52°C (125°F) with cold start capability at -18°C (0°F).
  •     
  • Auto hydraulic oil warmup gets you to work faster in cold temperatures and helps prolong the life of components.
  •     
  • Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to increase undercarriage life.
  •     
  • The sloped track frame prevents mud and debris accumulation, helping reduce risk of track damage.
        
  • Start the engine with a push button; use a Bluetooth® key fob or the unique Operator ID function.
  •     
  • Program each joystick button, including power mode, response, and pattern, using Operator ID; the machine will remember what you set each time you go to work.
  •     
  • Make moving the excavator much easier with standard Cat Stick Steer. Simply push a button and use one hand to travel and turn instead of both hands or feet on levers or pedals.
  •     
  • Not sure how a function works or how to maintain the excavator? Always have the operator’s manual at your fingertips in the touchscreen monitor.
        
  • Get in and out of the cab easily with the standard tilt-up left console.
  •     
  • Deluxe cab with premium seat offers a heated and ventilated seat for year-round comfort.
  •     
  • Control the excavator comfortably with easy-to-reach controls all located in front of you.
  •     
  • Stow your gear with plenty of in-cab storage beneath and behind the seat and in the consoles.
  •     
  • Use the standard radio’s USB ports and Bluetooth® technology to connect personal devices and make hands-free calls.
        
  • Long life fuel, oil, and air filters keep you working on the job longer.
  •     
  • Check the hydraulic system oil and easily drain fuel system water from ground level.
  •     
  • Track your excavator’s filter life and maintenance intervals via the in-cab monitor. The optional engine oil sensor tracks your oil levels to speed up your daily maintenance routine.
  •     
  • Change all fuel filters at a synchronized 1,000 hours. Filters are grouped together for easy maintenance.
  •     
  • The air intake filter with pre-cleaner has a high dust holding capacity.
  •     
  • The hydraulic oil filter provides improved filtration performance and anti-drain valves to keep oil clean when the filter is replaced.
  •     
  • The high-efficiency hydraulic fan has a standard automatic reverse function to keep cores free from debris, eliminating the need for any operator interaction.
  •     
  • Boost productivity with proactive service reminders. The Integrated vehicle health management system alerts the operator with step-by-step service guidance along with parts needed so you don't experience any unnecessary downtime.
  •     
  • S•O•SSM ports simplify maintenance and allow for quick, easy extraction of fluid samples for analysis.
        
  • The front windshield and roof window are made with P5A glazing for enhanced impact resistance.
  •     
  • A travel direction indicator helps operators know which way to activate the travel levers.
  •     
  • Enjoy great visibility in each swing direction and behind you with the help of smaller cab pillars and larger windows.
  •     
  • Standard Operator Protective Guards (OPG) protect the roof and front window in a demolition application while also maintaining visibility to the jobsite.
  •     
  • A ground-level shutoff switch stops all fuel to the engine when activated and shuts down the machine.
  •     
  • Rearview and right-hand-sideview cameras are standard. Upgrade to 360° visibility and you’ll easily visualize objects and personnel around the excavator in a single view.
  •     
  • Serrated steps and anti-skid punch plate on the service platform help prevent slipping.
  •     
  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
  •     
  • Standard 2D E-Fence (swing) helps you avoid swinging into obstacles to the side of the machine such as live traffic and structures
  •     
  • Cat Lift Assist with retrofit boom helps you avoid tipping by letting you know if your load is within the excavator’s safe working range.
        
  • The Cat® C9.3B engine emits equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
  •     
  • Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% biodiesel FAME (fatty acid methyl ester)* or 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.
  •     
  • Auto Engine Speed Control helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  •     
  • Cat Grade technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy.
  •     
  • Cat® Payload for excavators provides on-the-go material weighing which helps reduce fuel burn by improving loading efficiency, job site productivity, and eliminating trips to the scale.
  •     
  • Cat® 2D E-fence keeps the front linkage within a predefined work area to avoid hazards such as traffic - not only helping keep personnel safe but also helps you avoid repairs, downtime, and costly job site fines.
  •     
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  •     
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.

*For use of blends higher than 20% biodiesel, consult your Cat dealer.
**Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

General Duty Bucket 1650 mm (65 in): 540-4111
General Duty Bucket 1650 mm (65 in): 540-4108
General Duty Bucket 1500 mm (59 in): 561-0625
General Duty Bucket 1650 mm (65 in): 541-1739
General Duty Bucket 1500 mm (59 in): 541-1738
General Duty Bucket 1800 mm (71 in): 540-4110
General Duty Bucket 1650 mm (65 in): 541-1741
General Duty Bucket 1800 mm (71 in): 541-1742
Heavy Duty Bucket 1350 mm (54 in): 528-4603
Heavy Duty Bucket 1500 mm (60 in): 528-4669
Heavy Duty Bucket 1850 mm (72 in): 528-4610
Severe Duty Bucket 1500 mm (59 in): 528-4645
Ditch Cleaning Bucket 1800 mm (72 in): 462-8433
Ditch Cleaning Bucket 2000 mm (79 in): 462-8434
Ditch Cleaning Bucket 2200 mm (87 in): 462-8441
Ditch Cleaning Bucket 2200 mm (87 in): 462-8440
CVP110
CW-45S
CW-45S
CW-45
CW-40
CW-45
CW-40
Pin Grabber Coupler (DB-Linkage): 455-3906
G324 Demolition & Sorting Grapple: 587-8977
G332 Demolition & Sorting Grapple: 587-8991
G345 Demolition & Sorting Grapple: 608-0756
G332 Demolition & Sorting Grapple: 587-8994
CTV20-1300 Clamshell Grapple
CTV20-1500 Clamshell Grapple
CTV20-1700 Clamshell Grapple
CTV20-1900 Clamshell Grapple
CTV20-2300 Clamshell Grapple
CTV20-2700 Clamshell Grapple
CTV20-1500-BOCE Clamshell Grapple
CTV20-2300-BOCE Clamshell Grapple
CTV30-1700 Clamshell Grapple
CTV30-1900 Clamshell Grapple
CTV30-2300 Clamshell Grapple
CTV30-2700 Clamshell Grapple
CTV30-2900 Clamshell Grapple
CTV30-3100 Clamshell Grapple
CTV30-3800 Clamshell Grapple
CTV30-1900-BOCE Clamshell Grapple
CTV30-2300-BOCE Clamshell Grapple
CTV30-2500-BOCE Clamshell Grapple
CTV30-2700-BOCE Clamshell Grapple
CTV30-3400-BOCE Clamshell Grapple
CTV30-3800-BOCE Clamshell Grapple
GSM50 5-Tine, 1250-Liter Orange Peel Grapple
GSM50 5-Tine, 1500-Liter Orange Peel Grapple
GSM50 5-Tine, 2000-Liter Orange Peel Grapple
GSH555 5-Tine, 1000-Liter Orange Peel Grapple
GSH555 5-Tine, 1500-Liter Orange Peel Grapple
GSH455 4-Tine, 1000-Liter Orange Peel Grapple
GSH455 4-Tine, 1500-Liter Orange Peel Grapple
GSH455 4-Tine, 2000-Liter Orange Peel Grapple
H140 GC
H160 GC
H180 GC
H140 GC S
H180 GC S
H160 GC S
H140 S
H160 S
H180 S
MP332 Demolition Jaw
MP324 Demolition Jaw
MP324 Universal Jaw
MP318 Universal Jaw
MP332 Pulverizer Jaw
MP345 Pulverizer Jaw
MP324 Pulverizer Jaw
MP318 Pulverizer Jaw
MP345 Concrete Cutter Jaw
MP332 Concrete Cutter Jaw
MP324 Concrete Cutter Jaw
MP332 Shear Jaw
MP345 Shear Jaw
MP324 Shear Jaw
MP318 Shear Jaw
MP324 Tank Shear
P232 Secondary Pulverizer
VisionLink® Productivity
G324 Demolition & Sorting Grapple: 587-8978
MP345 Demolition Jaw
MP318 Demolition Jaw
MP332 Universal Jaw
MP318 Concrete Cutter Jaw
MP332 Tank Shear
RC20
RC30