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Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
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Demolition Excavator with the Largest Attachments for 6 to 7 Story Work
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 a FOGS cab, the 340 UHD keeps you working longer and safer.
Benefits
Maximize Performance
Hydraulic quick disconnect requires no tools to swap booms in 15-20 minutes. Standard Cat Payload, Cat 2D E-fence, and Cat Grade with 2D technologies provide additional versatility, precision, and efficiency.
Reliable High Reach
Experience the industry’s highest level of performance with more stick pin height and larger attachment capabilities. Reach up to 22 m (72'2") or 25 m (82'0") with a UHD boom, or choose between three stick options for the retrofit boom.
Enhanced Comfort and Safety
Stay comfortable all day long in a deluxe cab with FOGS protection for a safer work environment. Tilt cab up to 30 degrees for better tool visbility while the 254 mm (10 in) touchscreen monitor indicates easy to read stability monitoring system.
Features At A Glance
HIGH PERFORMANCE WITH LOW FUEL CONSUMPTION
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.
BOOST EFFICIENCY AND PRODUCTIVITY
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 retorfit boom. Pick up a load of material – with either a bucket or grapple – and get a real-time weight estimate without even swinging.
Remote flash works around your schedule to ensure your machine’s software is up to date for optimal performance.
Standard Cat Product Link™ provides location, machine hours, fuel usage, productivity, idle time, diagnostic codes, and other machine data on demand, helping you improve jobsite efficiency with lower operating costs.
The stability monitoring system continuously informs operators of work tool position within the safe working range and warns when approaching the stability limit.
RELIABLE IN TOUGH CONDITIONS
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.
SIMPLE TO OPERATE
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.
WORK IN COMFORT
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.
EASY MAINTENANCE
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.
S∙O∙S ports simplify maintenance and allow for quick, easy extraction of fluid samples for analysis.
SAFELY HOME EVERY DAY
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.
Falling Object Guards (FOGS) 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.
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.
SUSTAINABILITY
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.
** Lower-carbon intensity fuels do not significantly reduce GHGs at the tailpipe.
25 m (82' 0") UHD Front (Base Boom, Nose Boom, Fore Boom), 7.1 m (23'4") UHD Stick, 600 mm (24") triple grouser shoes and 9 mt (19,842 lb) counterweight25 m (82' 0") UHD Front (Base Boom, Nose Boom, Fore Boom), 7.1 m (23'4") UHD Stick, 600 mm (24") triple grouser shoes and 9 mt (19,842 lb) counterweight
Machine Weight - Retrofit Configuration
117900 lb53500 kg
Note (2)
Retrofit Boom (Base Boom, Retrofit Boom), Hydraulic Variable Gauge undercarriage, R3.2 m DB (10'6") Stick, HD 1.88 m³ (2.46 yd³) bucket, 600 mm (24") triple grouser shoes and 9 mt (19,842 lb) counterweightRetrofit Boom (Base Boom, Retrofit Boom), Hydraulic Variable Gauge undercarriage, R3.2 m DB (10'6") Stick, HD 1.88 m³ (2.46 yd³) bucket, 600 mm (24") triple grouser shoes and 9 mt (19,842 lb) counterweight
UHD in Cradle
20360 lb9230 kg
Retrofit Boom in Cradle - R3.2 DB Stick
13340 lb6050 kg
Retrofit Boom in Cradle - R3.9 DB Stick
13710 lb6220 kg
2-piece Retrofit boom in cradle - R3.2 DB stick
17440 lb7910 kg
Service Refill Capacities
Fuel Tank Capacity
159 gal (US)600 l
Cooling System
10 gal (US)40 l
Engine Oil
8 gal (US)32 l
Swing Drive
4 gal (US)15 l
Final Drive - Each
2 gal (US)8 l
Hydraulic System - Including Tank
145 gal (US)550 l
Hydraulic Tank
43 gal (US)161 l
Dimensions
Note (1)
UHD Front (Base Boom, Nose Boom, Fore Boom), 7.1 m (23'4") UHD Stick, 600 mm (24") triple grouser shoes and 9 mt (19,842 lb) counterweightUHD Front (Base Boom, Nose Boom, Fore Boom), 7.1 m (23'4") UHD Stick, 600 mm (24") triple grouser shoes and 9 mt (19,842 lb) counterweight
Shipping Height - Top of Cab
11.1 ft3383 mm
Shipping Length
59.6 ft18160 mm
Tail Swing Radius
11.6 ft3521 mm
Counterweight Clearance
4.6 ft1397 mm
Ground Clearance
1.7 ft510 mm
Track Length
18.9 ft5770 mm
Track Length to Center of Rollers
15.7 ft4770 mm
Shipping Gauge - Retracted Position
7.1 ft2400 mm
Working Gauge - Extended Position
11.2 ft3400 mm
Transport Width
8.2 ft2500 mm
Machine Length - without Front, with Counterweight
23.3 ft7077 mm
Machine Length - without Front and Counterweight
22.1 ft6954 mm
Cab Height - With FOGS
11.8 ft3585 mm
Track Width - Extended
13.1 ft4000 mm
Track Width - Retracted
9.1 ft3000 mm
Working Ranges and Forces
Maximum Pin Height at Stick Nose
82 ft25 m
Maximum Weight at Stick Nose
7300 lb3300 kg
Maximum Working Pin Height at Stick Nose - 1/2
69.8 ft21270 mm
Maximum Working Reach at Stick Nose - 1/2
42.8 ft13020 mm
Maximum Height at Stick Nose in Max Reach Position
52.2 ft15900 mm
Maximum Reach at Stick Nose
43.8 ft13330 mm
Note (1)
25 m (82' 0") UHD Front (Over-the-Front)25 m (82' 0") UHD Front (Over-the-Front)
Working Ranges and Forces - Retrofit Boom - Straight
Note 1
Retrofit Boom - Straight - R3.9 m DB (12' 10") stick (Over-the-Front)Retrofit Boom - Straight - R3.9 m DB (12' 10") stick (Over-the-Front)
Maximum Pin Height at Stick Nose
41.1 ft12.76 m
Maximum Weight at Stick Nose
9300 lb4200 kg
Maximum Height at Stick Nose in Max Reach Position
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