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Kubota KX121-3α GL excavator specs (2005 - 2017)
The KX 121-3 GL Alpha mini excavator model is manufactured by Kubota. Find and download detailed specs and data sheets for this ma... Read more
The KX 121-3 GL Alpha mini excavator model is manufactured by Kubota. Find and download detailed specs and data sheets for this machine here.
The Kubota KX 121-3 GL Alpha is a 3.9t machine with Kubota engine which powers this model with up to 29.4kW or 39 horse power. This Kubota mini excavator belongs to the biggest machine segment in the mini excavators category. The model's dimensions are 5.06m x 1.7m x 2.49m. The bucket capacity of KX 121-3 GL Alpha is 0.12m³, which is above average for this type of machine.
The Kubota KX 121-3 GL Alpha has been equipped and sold with Blade and Rubber track. Quick hitch hydr., Aircondition and Quick hitch mech. Are not provided on this model as of 2017. There are more detailed specifications and machine descriptions available in the original Kubota KX 121-3 GL Alpha specs data sheet. Available in English and German, LECTURA Specs offers a free download of highly detailed specifications and machine descriptions of this model.
This model can be acquired for a list price between €58000 and €74000. Production of the KX 121-3 GL Alpha continues in 2017. For more detailed information about pricing and current residual values, check out the LECTURA Valuation system.
Kubota currently produces 38 other mini excavators, which range from 1t up to 5.5t - the most visited on LECTURA Specs are KX 057-4, KX 61-3 GL, KX 71-3 GL. Ranked in the LECTURA index at #63, this KX 121-3 GL Alpha mini excavator has models that date from 2005 to 2017. Throughout the production cycle of this KX 121-3 GL Alpha mini excavator, there have been around 38 models that average a price of €24600 for an age of 7 years Want more detailed specifications? Download the latest Kubota KX 121-3 GL Alpha specs data sheet on LECTURA Specs today!
Technical specs - KX121-3α GL Kubota
Specification
Notice: Every data listed is verified by LECTURA Specs team experts. However, incomplete data and mistakes might occur.Contact our team with any change suggestion.
- Weight 3.9 t
- Transport length 5.06 m
- Transport width 1.7 m
- Transport height 2.49 m
- Bucket capacity 0.12 m³
- Bucket width 0.6 m
- Track width 350 mm
- Driver protection KbR
- Max. Reach horizontal 5,6 m
- Dredging depth 3,51 m
- Tear-out force 32.5 kN
- Engine manuf. Kubota
- Engine type V2203M
- Engine power 29.4 kW
- Displacement 2.2 l
- Revolutions at max torque 2250 rpm
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Bucket capacity min.
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Bucket capacity max.
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Standard tyres
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Dimension lxwxh
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Max. torque
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No. of cylinders
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Cylinder bore x stroke
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Emission level
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Basic model with standard bucket
Special equipment
- Track adjustment
- Rubber track
- Blade
- Aircondition
- Quick hitch hydr.
- Quick hitch mech.
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Kubota KX121-3α GL overview
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Kubota KX121-3α GL features overview
Enhanced digging force
A well-balanced arm and bucket provides an operator with efficient digging force. In addition, setting the maximum operating pressure to 24.5 MPa has increased each digging force by 15% in order to make even tough digging work faster.
Air conditioning (Optional)
The new optional deluxe air conditioning/heating of the cab can increase cooling, heating and ventilation for greater climate control. In addition, external air can be introduced with a touch of the external air vent. -
Engine / Driveline and transmission
Kubota engine
Kubota's unique New E-TVCS (Three Vortex Combustion System) enables high energy output, low vibration and low fuel consumption. It also minimises exhaust emissions. Among a variety of Kubota engine models highly proven on the compact equipment market, the KX121-3αopted is for the most suitable engine for its machine size in both performance and economy.
Auto Idling System (AI)
If no high engine rpm is needed, or if control levers stay in neutral for more than 4 seconds, the idle system automatically reduces the engine to idling rpm. When re-moving the levers, motor speed is promptly reset to selectable RPM. This innovative feature not only decreases noise and exhaust emissions but also saves fuel, energy and running costs.
When levers are moved again...
Informative, interactive and functional. Kubota's Intelligent Control System stops you in line with the vital signs of the KX121-3α. It accurately shows diagnosis of current working conditions and warning indicators for engine speed and hour meter as well as fuel values, temperatures and oil levels. When filling up using fuel, our panel also informs the operator that the tank is almost full; it also alerts the operator during routine maintenance. Overall, the Panel reduces excavator downtime and repair fees due to a decrease in total operating costs. -
Hydraulics
Four simultaneous operations
When simultaneously operating boom, arm, bucket and swing as when loading on trucks or lifting the pump distributes sufficient oil flow to each actuator according to the height of lever lift without loss of speed or power; this ensures high performance digging and dozing at all times.
Third line hydraulic return
The third line hydraulic return enables higher oil flow efficiency by reducing back pressure when working with hydraulically actuated attachments such as a hydraulic hammer.
New load sensing hydraulic system
Kubota introduces an advanced hydraulic system that gives a better effect on the operating feel and less fuel consumption. With this new load sensing system, the hydraulic oil flow is supplied from just one variable displacement pump. Load information to each actuator are returned to the pump at all times making it much smoother depending on the height of the lever stroke distributes the appropriate oil flow into each actuator. This achieves equal movement to the hydraulic cylinder regardless of different stress situations in relation to the lever lift. This makes work like lifting and levelling considerably smoother. In addition, when neutralizing the operator control lever, the pump stops supply with unnecessary oil flow. Meaning that the pump only needed oil flow is delivered. Thus, through this load sensing hydraulic system excess energy waste is minimised as excessive oil return flows do not come up against the hydraulic tank. Compared to conventional models, around 20% fuel can be saved for similar tasks.
Control levers
Appropriate lever lift and ergonomically designed wrist rests provide greater controllability, smoother operation while reducing operator fatigue.
Straight travel
The New Hydraulic Matching System (New-HMS) ensures safer loading/discharge and easier unscrewing, even while operating any other circuit.
Proportional flow auxiliary switch
Repositioned from ground level, a convenient thumb operation switch allows easy operation of auxiliary equipment such as the auger and tipping bucket.
Hydraulic system
Pressure accumulator, Hydraulic pressure test ports, Straight travel circuit, third line hydraulic recirculation, auxiliary switch on right control lever.
Working equipment
1300 mm arm, auxiliary hydraulic circuit line to the arm end, 2 working lights on the cab and 1 light on the boom. -
Tyres / Tracks
2--speed switch
Conveniently mounted on the dozer lever, the repositioned 2-Speed Travel Switch allows advanced user-friendly travel speed changes, increased space conditions, improved operation as well as greater control and comfort.
Rubber crawler
On the KX121-3α, rubber crawler design has better durability and stability when traveling. The lug pattern with more ground contact surface and steel core positioning is designed for better standing capacity and less vibration during travel. In addition, double flange track rollers contribute to better machine stability.
Undercarriage
350 mm rubber track, 1 x upper track roller, 4 x outer flange chart lower track roller, 2-speed travel switch on dozer lever, bracket for anti-theft device. -
Other features
Boom cylinder protector
The new, thicker steel coated V-shaped boom cylinder guard protects from damage caused by attachments, rocks or loading.
Protected bucket cylinder hoses
The bucket cylinder hoses are routed inside the arm to protect from damage. This ensures longer life and lower repair costs.
Two piece hose design
The innovative two-piece hose design on the KX121-3α's dozer and boom cylinders reduces hose replacement time by 60 % compared to nonjoint types. In addition, this design virtually eliminates the need to enter the machine for maintenance -
Safety
ROPS/FOPS cabin (Level1)
The cab offers maximum operator safety with its Roll Over Protection Structure (ROPS) and Falling Object Protection Structure (FOPS).
Swivel negative brake
The swing negative brake automatically locks the swing function as soon as the engine is stopped or the pilot control safety lever is raised. This feature eliminates the need for a swing transport lock pin.
Standard Equipment Engine/Fuel system
Double Element Air Cleaner, Electric Fuel Pump, Auto Idling System, ROPS (Roll-Over Protective Structure, ISO3471), FOPS (Falling Objects Protective Structure) Level 1, weight adjustable full suspension seat, seat belt, Hydraulic pilot control lever with wrist rests, travel lever with foot pedals, cab heater for defrost & dumping, emergency exit hammer, front window power assisted with 2 gas flaps, 12 V power source for Radiostereo, 2 speakers and radio antenna,
Safety system
Engine start safety system on left console, Travel Lock System on left console, swing lock system, Boom anti-fall circuit in control valve.
Travelling lock system
Whenever the pilot control safety lever is not engaged, the travel levers are mechanically locked to prevent unexpected machine movements especially when the operator enters or exits the cab.
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Compare Kubota KX121-3α GL with similar Mini Excavators
Kubota KX121-3α GL
Weight: 3.9 t
Transport length: 5.06 m
Transport width: 1.7 m
Transport height: 2.49 m
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Events & News
Construction News by LECTURA 11.08.2022
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Weir to acquire Artificial Intelligence and Machine Vision technology leader Motion Metrics
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