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Construction Equipment Rental in Concord, New-Hampshire

We are fully committed to providing high-value construction equipment rental solutions to our customers in Concord.

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Equipment Rental Concord, Construction equipment rental Concord, Construction Concord, Heavy Equipment Rental Concord.

Komatsu Dozers D61EX-17

D65EX-17 Crawler Dozer

The D65EX-17 provides excellent production and economy at the same time. The Komatsu exclusive Sigma blade can produce 15% more than a conventional semi-U blade and the automatic transmission with lock-up torque converter can reduce fuel consumption by up to 15% over the previous model. To make the operator more comfortable and productive, a new air suspension heavy duty heated seat is standard. Hydrostatic steering (HSS) with a palm command control joystick gives the operator the ability to make smooth turns under full power.

Engine
Model Komatsu SAA6D114E-5*
Type 4-cycle, water-cooled, direct injection
Aspiration Komatsu variable geometry Turbocharged, air-to-air aftercooled
Number of cylinders 6
Bore x stroke 4.49" x 5.69" 114 mm x 144.5 mm
Piston displacement 540 in³ 8.85 ltr
Governor All-speed and mid-range, electronic
Horsepower
SAE J1995 - Gross 207 HP 155 kW
(ISO 14396 205 HP 153 kW
ISO 9249 / SAE J1349 - Net 186 HP 139 kW
Rated rpm 1950 rpm
Fan drive type Hydraulic
Lubrication system:
Method Gear pump, force lubricationn
Filter Full-flow
*EPA Tier 4 Interim and EU stage 3B emissions certified
TORQFLOW transmission
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 2-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.
Travel speed (quick shift mode)* Forward Reverse
1st 2.2 mph
3.6 km/h
2.7 mph
4.4 km/h
2nd 3.4 mph
5.5 km/h
4.1 mph
6.6 km/h
3rd 4.5 mph
7.2 km/h
5.3 mph
8.6 km/h
Travel speed (variable mode) 7.0 mph
11.2 km/h
8.3 mph
13.4 km/h

Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 2-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.

STEERING SYSTEM
Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the PCCS lever to left to make a left turn. Tilt it to the right for a right turn.
Hydrostatic Steering System (HSS) is powered by steering planetary units and a hydraulic pump and motor. Counter-rotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.
Minimum turning radius:
D65EX-17 6'3" 1.9 m
D65EX-17 with PAT 6'7" 2.0 m
D65PX-17 7'3" 2.2 m
D65WX-17 6'11" 2.1 m
Undercarriage
Suspension Oscillating-type with equalizer bar and pivot shafts
Track roller frame Monocoque, large section, durable construction
Rollers and idlers Lubricated
Track shoes Parallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. Track tension is easily adjusted with grease gun.
FINAL DRIVE
Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement.
HYDRAuLIC SYSTEM
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.

Hydraulic control units:
All spool valves externally mounted beside the hydraulic tank. Piston type hydraulic pump with capacity (discharge flow) of 248 ltr/min / 65.5 U.S. gal/min at rated engine rpm.

Relief valve setting 4,050 psi 27.9 MPa / 285 kg/cm²
Control valves:
Spool control valves for SIGMADOZER or straight tilt dozer
Positions:
Blade lift Raise, hold, lower, and float
Blade tilt Right, hold, and left
Rear attachment Raise, hold, and lower
Spool control valves for Power Angle Tilt dozer
Positions:
Blade lift Raise, hold, lower, and float
Blade tilt Right, hold, and left
Blade angle Right, hold, and left
Rear attachment Raise, hold, and lower
Hydraulic cylinders Double-acting, piston
Number of cylinders - SIGMADOZER Straight Tilt Dozer: Bore:
Blade lift - 2 3.3" 85 mm
Blade tilt - 1 4.9" 125 mm
Blade angle - 2 N/A
Ripper lift - 1 4.9" 125 mm
Pitch angle - 1 39° - 53°
Number of cylinders - Power Tilt Dozer: Bore:
Blade lift - 2 3.3" 85 mm
Blade tilt - 1 5.1" 130 mm
Blade angle - 2 4.3" 110mm
Ripper lift - 1 4.9" 125 mm
Pitch angle - 1 52° - 58°
Hydraulic oil capacity (refill): 14.5 U.S. ga 55 ltr
Ripper equipment (additional volume):
Multi-shank ripper 1.8 U.S. ga 7 ltr
SERVICE REFILL CAPACITIES
Fuel tank 109.6 U.S. gal 415 ltr
Coolant 14.3 U.S. gal 54 ltr
Engine 6.6 U.S. gal 25 ltr
Torque converter, transmission, bevel gear, and steering system 12.7 U.S. gal 48 ltr
Final drive (each side):
D65EX-17 4.4 U.S. gal 16.5 ltr
D65EX-17 with PAT 4.4 U.S. gal 16.5 ltr
D65PX-17 5.8 U.S. gal 22 ltr
D65WX-17 5.8 U.S. gal 22 ltr

KKomatsu Dozers D39PX-23
D39PXi-23 Crawler Dozer
iMC (intelligent machine control) machines have the following advantages over dozers with external grade control systems.

Innovative
Automated operation from rough dozing to finish grade.

Intelligent
New dozing mode, load control performance features.

Integrated
Standard factory installed integrated system.

No Cables
No coiled cables between machine and blade.

No Climbing
GNSS antenna and mast removed from blade.

No Connections
No daily connections required between machine and blade

Engine
Model Komatsu SAA4D95LE-6*
Type 4-cycle, water-cooled, direct injection
Aspiration Variable flow, turbocharged, air-to-air aftercooled
Number of cylinders 4
Bore x stroke 3.75" x 4.52" 95 mm x 115 mm
Piston displacement 199 in³ 3.26 ltr
Governor All-speed, electronic
Horsepower
SAE J1995 - Gross 107 HP 79 kW
ISO 9249 / SAE J1349 - Net 105 HP 78 kW
Rated rpm 2200 rpm
Fan drive type Hydraulic
Lubrication system:
Method Gear pump, force lubrication
Filter Full-flow
*EPA Tier 4 Interim and EU stage 3B emissions certified
Hydrostatic transmission
Dual-path, hydrostatic transmission provides infinite speed changes up to 5.3 km/h / 8.5 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch.
Travel speed (quick shift mode)* Forward Reverse
1st 0–2.1 mph
0–3.4 km/h
0–2.5 mph
0–4.1 km/h
2nd 0–3.5 mph
0–5.6 km/h
0–4.0 mph
0–6.5 km/h
3rd 0–5.3 mph
0–8.5 km/h
0–5.3 mph
0–8.5 km/h
Travel speed (variable mode) Forward Reverse
0–5.3 mph
0–8.5 km/h
0–5.3 mph
0–8.5 km/h
*Quick shift speeds are adjustable in the monitor.
FINAL DRIVE
In-shoe mounted axial piston type travel motors with integrated two stage planetary gear reduction. Compact in-shoe mount reduces risk of damaged by debris. Bolt-on sprocket ring.
STEERING SYSTEM
Palm Command Control System (PCCS) joystick control for all directional movements. Pushing the joystick forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the joystick to the left or right to make a turn. Tilting the joystick fully to the left or right activates counter-rotation.

Hydrostatic Transmission (HST) provides smooth powerful turns. Fully electronic control enables smooth control that can be adjusted in the monitor. The PCCS utilizes shift buttons to increase and decrease speed.

Minimum turning radius* 87" 2.2 m
*As measured by track marks on the ground at pivot turn.

 

Undercarriage
Suspension Rigid type
Track roller frame Monocoque, large section, durable construction
Rollers and idlers Lubricated track rollers
Sealed and lubricated track Track tension is easily adjusted with grease gun.
Number of track rollers (each side) 6
Type of shoes (standard) Single grouser
Number of shoes (each side) 39
Grouser height 2.1" 53 mm
Shoe width (standard) 20" 510 mm
Ground contact area 3,731 in 24072 cm²
Ground pressure
(with dozer, ROPS cab)
5.64 psi 0.40 kgf/cm² / 38.9 kPa
Track gauge 5'4" 1620 mm
Length of track on ground 7'9" 2360 mm
SERVICE REFILL CAPACITIES
Coolant 9.0 U.S. gal 34 ltr
Fuel tank 50.2 U.S. gal 190 ltr
Engine oil 2.9 U.S. gal 11 ltr
Hydraulic tank 15.8 U.S. gal 60 ltr
Final drive (each side) 0.9 U.S. gal 3.5 ltr
Operating Weight (approximate)
Tractor weight: Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.
ROPS cab 18,387 lb 8340 kg
Operating weight: Including Power Angle Tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank.
ROPS cab 20,922 lb 9490 kg
hydraulic system
Closed-center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted remote to the hydraulic tank. Piston-type hydraulic pump with capacity (discharge flow) of 99 ltr/min 26 U.S. gal/min at rated engine rpm.
Relief valve setting 3,974 psi 27.4 MPa / 280 kg/cm²
Hydraulic cylinders Double-acting, piston type
Number of cylinders: Bore Bore
Blade lift / 2 3" 75 mm
Blade tilt / 1 3.5" 90 mm
Blade angle / 2 3.1" 80 mm
Hydraulic oil capacity (refilling):
Power angle tilt dozer 15.9 U.S. gal 60 ltr
Control valves:
3-spool control valve for power angle tilt dozer.  
Positions:  
Blade lift Raise, hold, lower, and float
Blade tilt   Right, hold, and left
Blade angle   Right, hold, and left
Additional control valve required for ripper
Positions:
Ripper lift Raise, hold, and lower

Komatsu Dozer D155AX-7
D155AX-7

The D155AX-7 is a dozer that bridges the gap between contractor site prep dozers and large contractor production/mining dozers. The Tier 4 interim D155AX-7 has the precise and responsive hydraulic control and smooth turning of hydrostatic steering of smaller dozers for grading and big dozer features like a lock-up torque converter, Unique, high production Sigma dozer blade and K-bogie oscillating undercarriage.

Engine
Model Komatsu SAA6D140E-6*
Type 4-cycle, water-cooled, direct injection
Aspiration 100 in³ Komatsu variable geometry turbocharged, air-to-air aftercooled, cooled EGR
Number of cylinders 6
Bore x stroke 5.51" x 6.50" 140 mm x 165 mm
Piston displacement 930 in³ 15.24 ltr
Governor All-speed and mid-range, electronic
Horsepower :
SAE J1995 - Gross 360 HP 268 kW
ISO 9249 / SAE J1349 - Net 354 HP 264 kW
Rated rpm 1900 rpm
Fan drive type Hydraulic
Lubrication system :
Method Gear pump, force lubrication
Filter Full-flow
*EPA Tier 4 Interim and EU stage 3B emissions certified
TORQFLOW Transmission
Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 2-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.
Travel speed:
1st Gear forward 2.4 mph 3.8 km/h
1st Gear reverse 2.9 mph 4.6 km/h
2nd Gear forward 3.5 mph 5.6 km/h
2nd Gear reverse 4.2 mph 6.8 km/h
3rd L Gear forward 4.7 mph 7.5 km/h
3rd L Gear reverse 5.7 mph 9.2 km/h
3rd Gear forward 7.2 mph 11.6 km/h
3rd Gear reverse 8.7 mph 14.0 km/h
Final Drive
Double-reduction, spur and planetary final drives increase tractive effort. Segmented sprockets are bolt-on for easy in the field replacement.
Steering System
Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the PCCS lever to the left to make a left turn. Tilt it to the right for a right turn.

Hydrostatic Steering System (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counter-rotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gearshift lock lever also applies parking brakes.

Minimum turning radius 7'0" 2.14 m
Undercarriage
K-Bogie undercarriage
Lubricated track rollers are resiliently mounted on the track frame with a bogie suspension system whose oscillating motion is cushioned by rubber pads.Track shoes
Lubricated tracks. Unique dust seals for preventing entry of foreign abrasives into pin-to-bushing clearance for extended service. Track tension easily adjusted with grease gun.
Suspension Oscillation-type with equalizer bar and forward mounted pivot shafts
Track roller frame Monocoque, high-tensilestrength steel construction
Rollers and idlers Lubricated
Number of shoes (each side) 42
Grouser height 3.1" 80 mm
Shoe width (standard/maximum) 610 mm / 710 mm 24" / 28"
Ground contact area 6,193 in² 39955 cm²
Ground pressure (tractor only) 11.9 psi 82.4 kPa / 0.84 kg/cm²
Number of track rollers (each side) 7
Number of carrier rollers (each side) 2
Service Refill Capacities
Fuel tank 165 U.S. gal 625 ltr
Coolant 27.3 U.S. gal 103.5 ltr
Engine oil 9.8 U.S. gal 37 ltr
Damper 0.4 U.S. gal 1.5 ltr
Hydraulic oil 24.2 U.S. gal 91.5 ltr
Transmission, bevel gear, and steering system 23.8 U.S. gal 90 ltr
Final drive (each side) 8.2 U.S. gal 31 ltr
Operating Weight
Tractor weight
Including rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment.Operating weight
Including strengthened SIGMADOZER®, giant ripper, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
Tractor weight 68,350 lb 31000 kg
Operating weight 87,100 lb 39500 kg
Ground pressure 15.4 psi 106 kPa / 1.08 kg/cm²
Hydraulic System
Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.

Hydraulic control unit:
All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (discharge flow) of 325 ltr/min 85.9 U.S. gal/min for steering and 180 ltr/min 47.6 U.S. gal/min for implemented at rated engine rpm.

Relief valve setting
. . . for implement 27.5 MPa 280 kg/cm² 3,980 psi
. . . for steering 38.2 MPa 390 kg/cm² 5,550 psi

Control valves:
Spool control valve for SIGMADOZER®, Semi-U tilt dozer and Full-U
Positions: Blade lift Raise, hold, lower, and float
Blade tilt Right, hold, and left
Additional control valve required for variable digging angle multi-shank ripper and giant ripper.
Positions: Ripper lift Raise, hold, and lower
Ripper tilt Increase, hold, and decrease
Hydraulic cylinders Double-acting, piston
Number of cylinders Bore Bore
Blade Lift / 2 4.33" 110 mm
Blade Tilt (Dual tilt) / 2 6.30" 160 mm
Blade Tilt (Single Tilt) / 1 6.30" 160 mm
Ripper Lift 7.09" 180 mm
Ripper Tilt / 1 7.87" 200 mm
Hydraulic oil capacity (refill):
SIGMADOZER 22.5 U.S. gal 85 ltr
Semi-U dozer 22.5 U.S. gal 85 ltr
Full-U dozer 22.5 U.S. gal 85 ltr
Ripper equipment (additional volume):
Multi-shank ripper 9.8 U.S. gal 37 ltr
Giant ripper 9.8 U.S. gal 37 ltr

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