340 UHD Ultra High Demolition Hydraulic Excavator

Operating Weight: 122600 lb
Maximum Pin Height at Stick Nose: 72.2 ft
Maximum Weight at Stick Nose: 8160 lb

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..

Features

LATEST FEATURES
Machine Setup Simplification
- At the touch of fingertips and navigating user-friendly icons, the latest operator oriented User Interface (UI) maximizes uptime and gets crews to work without delay. From re-ordering work tool lists to creating new work tool combinations as needed, operators can quickly set up machines and easily access information.
- The interface allows operators to maintain accuracy and makes the most of every second of their shift. Adding the ability to input couplers and attachments into the system makes setting up work tool combinations highly efficient by significantly reducing calibration time. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.
Cat Payload and Advanced Payload
- Cat Payload provides operators with on-the-go weighing to help them hit load targets and avoid overloading, underloading, or misloading materials. Advanced Payload is a system upgrade that offers expanded features and capabilities, including custom tags, daily totals, and electronic ticketing. Combine Payload with VisionLink® Productivity* to analyze jobsites and individual assets for remote management of production targets and key metrics.
* VisionLink® subscription required.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 08D
High Performance
- UHD can reach up to 18.6m (60 ft 11 in) of working vertical pin height, using a 3.7 ton (8,157 lbs) tool with 11.7m (38 ft 4 in) horizontal reach.
- Cat active stability monitoring system continuously informs operators of work tool position within the safe working range and warns when approaching the stability limit.
- Hydraulically actuated variable gauge undercarriage provides outstanding stability extended to 4000 mm (13 ft); it retracts to 3000 mm (10 ft) to make transportation easier.
- Standard rearview and right-hand sideview cameras give clear views on the monitor.
- The C9.3B engine can run on biodiesel up to B20 and meets EU Stage V, U.S. EPA Tier 4 Final, and Japan 2014 emission standards.
- Match the excavator to the job with three power modes – Power, Smart, and ECO. Smart mode automatically matches engine and hydraulic power to working requirements, providing maximum power when needed and reducing power when it isn’t to help save fuel.
- The high-efficiency hydraulic reversing fan cools the engine on demand to help reduce fuel consumption.
- Cat technologies increase operating efficiency to lower operator fatigue, operating costs, and fuel consumption.
Work in Comfort
- Demolition cab with standard Operator Protective Guards (OPG) includes front and roof of P5A
  10 mm (0.4”) laminated glass.
- Tilt-up 30° for a more productive and comfortable sight line.
- The windshield and roof one-piece parallel wipers with three intermittent settings include washer spray.
- Premium heated and cooled seat is standard.
- Get in and out of the cab easier using the tip-up left console.
- 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, overhead, and in the consoles.
- Use the standard radio’s USB ports and Bluetooth® technology to connect personal devices and make hands-free calls.
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.
- Automatic hydraulic oil warmup gets you to work faster in cold temperatures and helps prolong the life of components.
- Navigate quickly on the high-resolution 254 mm (10 in) touchscreen monitor or with the aid of the jog dial control.
- Make moving the excavator much easier with 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.
Boost Efficiency and Productivity with Cat Technology
- The latest operator oriented User Interface (UI) has been designed to maximize uptime by allowing operators to easily reorder work tool lists and quickly create new work tool combinations. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.
- 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.
Easy Maintenance
- Enjoy low maintenance cost due to extended service intervals.
- Check hydraulic system oil and easily drain fuel system water and fuel tank water from ground level.
- Track your excavator’s filter life and maintenance intervals via the in-cab monitor.
- Change all fuel filters at a synchronized 1,000 hours. Oil and fuel filters are grouped and located on the right-hand side of the machine for easy maintenance.
- The engine air intake filter with pre-cleaner has double the dust holding capacity of the previous air intake filter.
- The hydraulic oil filter provides improved filtration; anti-drain valves keep oil clean when the filter is replaced.
- 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•S^SM ports simplify maintenance and allow for quick, easy extraction of fluid samples for analysis.
Dedicated Service and Superior Support
When you buy Cat® equipment, you get more than the machine. You’re also getting the support of a best-in-class dealer network backed by a range of flexible solutions, technology, tools, and more.

When you work with your local Cat dealer, you’ll be supported by one of the industry’s most extensive, knowledgeable dealer networks. Comprised of 160 independent dealers, the Cat Dealer Network serves 197 countries with thousands of branches around the globe.

It’s more uptime, cost-saving service and repair options, quality parts, and precision components. It’s all about support built around your success.

Ask your Cat dealer today about the many services that help you do your work your way.
- The importance of buying genuine Cat parts.
1. Designed by Caterpillar engineers to the exact specs of your Cat equipment.
2. Rigorously tested to ensure maximum performance.
3. Covered by a 12-month warranty.
- Cat Inspect – Work made easy.
1. Record real-time inspection data.
2. Simplify inspections and reporting.
3. Easy-to-read results all in one place.
- Cat Ground Engaging Tools (GET) – Longer wear. More work.
1. GET for every machine and application.
2. Tools to extend life and track GET lifecycles.
3. Bucket rebuild options for optimal performance.
- Cat Hydraulic Components – Durability quality you can work with.
1. Flexible options – New, reman, exchange, rebuild or repair.
2. Expert diagnostics, testing, and contamination control.
3. Buy in-store, online, or on your mobile device.
- Cat Hose Service – Fast, safe—to get you back to work.
1. Hoses and couplings for most makes and models.
2. OEM database ensures an exact fit.
3. Industry-best tooling, training, and assembly standards.
- Cat Certified Rebuild – An investment that works. Again, and again.
1. Better-than-when-new performance at a fraction of the cost.
2. Performance, safety, and technology upgrades and enhancements.
3. Full warranty coverage, Customer Value Agreement, and special financing.
- Cat Remote Services – Work done in a flash.
1. Cut downtime for updates and service.
2. Install the latest machine software remotely.
3. Troubleshoot issues before a technician arrives.
24/7 Expert Support
Get industry-leading support for any question or problem you have 24 hours a day, 7 days a week, 365 days a year.

CALL US
We’re available 24/7 at
Toll Free:1-888-228-1460
Direct:1-513-830-1806
SMS:+13098656129

Learn more at https://parts.cat.com/
Safely Home Every Day
- On-board stability monitoring helps the operator enhance job safety.
- A travel direction indicator helps the operator know which way to activate the travel levers.
- Enjoy greater visibility in each swing direction with the help of narrow cab pillars and large windows.
- 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.
- Serrated steps and an anti-skid punch plate on the service platform help prevent slipping.
- Standard 2D E-Fence (swing) helps you avoid swinging into obstacles to the side of the machine such as live traffic and structures.
Sustainability
- The Cat® C9.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
- Cat 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 (hydrogenated 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.
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (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.

Specifications

Metric US

Engine

Engine Model	Cat C9.3B
Net Power - ISO 9249	346 hp 258.3 kW
Engine Power - ISO 14396 (DIN)	352 hp (metric) 352 hp (metric)
Net Power - ISO 9249 (DIN)	351 hp (metric) 351 hp (metric)
Engine Power - ISO 14396	347 hp 259 kW
Bore	5 in 115 mm
Stroke	6 in 149 mm
Displacement	568 in³ 9.3 l
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 of manufacture.
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 (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. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (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.

Hydraulic System

Main System - Maximum Flow	560 l/min (148 gal/min)
Maximum Pressure - Equipment	5076 psi 35000 kPa
Maximum Pressure - Equipment - Lift Mode	5511 psi 38000 kPa
Maximum Pressure - Travel	5076 psi 35000 kPa
Maximum Pressure - Swing	4264 psi 29400 kPa

Swing Mechanism - UHD Fronts

Swing Speed	4.09 r/min 4.09 r/min

Swing Mechanism

Swing Speed	8 r/min 8 r/min
Maximum Swing Torque	105000 lbf·ft 143 kN·m

Weights

Operating Weight	122600 lb 55600 kg
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	118600 lb 53800 kg
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	18700 lb 8480 kg
Retrofit Boom in Cradle - R3.9 DB Stick	13710 lb 6220 kg
Retrofit Boom in Cradle - R3.2 DB Stick	13340 lb 6050 kg
Retrofit Boom in Cradle - R2.8 DB Stick	13120 lb 5950 kg
2-Piece Retrofit Boom in Cradle - R3.2 DB Stick	17440 lb 7910 kg

Service Refill Capacities

Fuel Tank Capacity	158.5 gal (US) 600 l
Cooling System	10.5 gal (US) 40 l
Engine Oil	8.5 gal (US) 32 l
Swing Drive	4.8 gal (US) 18 l
Final Drive - Each	2.1 gal (US) 8 l
Hydraulic System - Including Tank	145.3 gal (US) 550 l
Hydraulic Tank	42.5 gal (US) 161 l
DEF Tank	21.1 gal (US) 80 l

Dimensions

Note (1)	22 m (72'2") UHD Front
Shipping Height - Top of Cab	11.1 ft 3383 mm
Cab Height - With OPG	11.8 ft 3585 mm
Shipping Length	49.8 ft 15160 mm
Tail Swing Radius	11.6 ft 3521 mm
Counterweight Clearance	4.6 ft 1397 mm
Ground Clearance	1.7 ft 510 mm
Track Length	18.9 ft 5770 mm
Track Length to Center of Rollers	15.7 ft 4770 mm
Working Gauge - Extended Position	11.2 ft 3400 mm
Shipping Gauge - Retracted Position	7.8 ft 2400 mm
Transport Width	10.7 ft 3255 mm
Machine Length - without Front, with Counterweight	23.3 ft 7077 mm
Machine Length - without Front and Counterweight	22.8 ft 6954 mm
Track Width - Extended	13.1 ft 4000 mm
Track Width - Retracted	9.8 ft 3000 mm
Note (2)	600 mm (24") Track Shoes

Working Ranges and Forces

Maximum Pin Height at Stick Nose	72.2 ft 22 m
Maximum Weight at Stick Nose	8160 lb 3700 kg
Maximum Working Pin Height at Stick Nose - 1/2	61 ft 18590 mm
Maximum Working Reach at Stick Nose - 1/2	38.4 ft 11680 mm
Maximum Height at Stick Nose in Max Reach Position	41.5 ft 12640 mm
Maximum Reach at Stick Nose	44.4 ft 13550 mm
Note (1)	22 m (72' 2") UHD Front (Over-the-Front)

Working Ranges and Forces - Retrofit Boom - Straight

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	39.8 ft 12.13 m
Maximum Weight at Stick Nose	9260 lb 4200 kg
Maximum Height at Stick Nose in Max Reach Position	7.6 ft 2310 mm
Maximum Reach at Stick Nose	34.8 ft 10620 mm
Maximum Digging Depth	16.1 ft 4910 mm
Maximum Reach - Ground Level	39.9 ft 12160 mm
Maximum Loading Height	34 ft 10370 mm
Minimum Loading Height	15.8 ft 4790 mm
Bucket Digging Force - ISO	47160 lbf 210 kN
Stick Digging Force - ISO	37300 lbf 166 kN

Working Ranges and Forces - Retrofit Boom - Bent

Note 1	Bent - R3.2DB (10'6") Stick - HVG Undercarriage
Bucket	GD 2.27 m³ (2.97 yd³)
Maximum Digging Depth	21.4 ft 6520 mm
Maximum Reach - Ground Level	36.7 ft 11180 mm
Maximum Cutting Height	35.4 ft 10790 mm
Maximum Loading Height	24.9 ft 7600 mm
Minimum Loading Height	10.4 ft 3180 mm
Bucket Digging Force - ISO	47160 lbf 210 kN
Stick Digging Force - ISO	37300 lbf 166 kN

Air Conditioning System

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).