• The PS-4000 is built for maximum placing and spreading productivity in central mix operations.
• The PS-4000 is designed to place and spread concrete up to 43 ft. (13.11 m) wide with the single conveyor or up to 50 ft. (15.24 m) with the twin conveyor system or spread concrete without the use of the conveyor system.
• The symmetrical design of the conveyor system allows it to be mounted on the left or the right side, or twin conveyors can be mounted on both sides of the machine, depending on job-site logistics.
• The 5 ft. (1.52 m) wide GOMACO designed twin conveyor systems are built with the strength and durability to catch the concrete load from end-dump trucks.
• The GOMACO PS-4000 two-track placer is equipped with the folding belt conveyor and the four-track placer is equipped with the sliding belt conveyor.
• The two-track placer with the folding belt conveyor hydraulically raises and lowers to allow trucks to pass by. Folding time is just eight seconds up and six seconds down, providing high production concrete placing and spreading. The four-track placer with the sliding belt conveyor hydraulically extends in seven seconds and retracts in seven seconds to allow trucks to pass by.
• The conveyor deflector controls the discharge of concrete onto the grade. A unique wiper system assures a clean, efficient operation.
• Final spreading of the material for the needed paving width is moved with a reversible hydraulically powered 20 in. (508 mm) diameter split auger.
• Hydraulically pressure-compensated sideplates provide edge control and a spreading depth up to 19 in. (483 mm).
• The GOMACO controller system provides electronic monitoring of grade and steering for placing and spreading accuracy. The sensors operate off the same stringline as the paver.
• The PS-4000 is designed to provide years of dependable and safe service. Emergency stop buttons are located on strategic areas of the machine to protect those working on and around the machine.
GOMACO PS-4000 Concrete Placer/Spreader
9 minutes 48 seconds
Four-Track Sliding Belt Conveyor
Two-Track Twin Folding Belt Conveyor
The PS-4000 is designed to place and spread concrete with the single conveyor or twin conveyor system, or spread concrete without the use of the conveyor system.
Read more about this project in GOMACO World 30.2.
The conveyor deflector directs the flow of the concrete at the discharge end of the conveyor.
The belt frame is hinged and can hydraulically raise and lower to allow trucks to pass by. Folding time is just eight seconds up and six seconds down, providing high production in the concrete placing and spreading operation.
The GOMACO-designed conveyor system provides quick, clean and efficient delivery of concrete to the grade. The 5 foot (1.52 meter) wide GOMACO-designed twin conveyor systems are built with the strength and durability to catch the concrete load from end-dump trucks.
The symmetrical design of the conveyor system allows it to be mounted on the left or right side, or the twin conveyors can be mounted on both sides of the machine, depending on job-site logistics.
Placing and spreading concrete in front of a placer helps provide positive rideability results.
The PS-4000 has a spreading width of up to 50 feet (15.24 meters). The durable spreader-plow does the initial spreading of the placed material. The plow speed is variable up to 120 feet per minute (36.58 meters per minute).
The final spreading of the concrete is quick and accurate with the reversible 20 inch (508 millimeter) diameter hydraulically powered split auger. The hydraulically pressure-compensated sideplates provide edge control and a spreading depth up to 19 inches (483 millimeters).
ENGINE
Type: Turbocharged diesel, C-12 Caterpillar engine.
Power: 425 hp (317.1 kW) @ 2200 rpm.
SERVICE CAPACITIES
Fuel reservoir: 200 gal. (757.1 L).
Hydraulic oil reservoir: 320 gal. (1211.3 L) oil reservoir on a three-point suspension system, independent of the main frame
AUTOMATED CONTROL SYSTEM
Type: Electronic-over-hydraulic.
Controls: GOMACO's operating system features self-diagnostics for front and rear grade, cross slope, steering, and Smart Steer controls for paving accuracy and ease of operation.
TELESCOPING FRAME
Telescoping: Modular frame telescopes on the left side up to 3 ft. 6 in. (1.07 m).
HYDRAULIC SYSTEM
Track Circuit
Pump: One vane pump providing 40 gpm (151.4 Lpm) @ 2100 rpm.
Auger Circuit
Pumps: Two open loop hydraulic vane pumps providing 24 gpm (90.85 Lpm) each.
Lift Circuit
Pumps: One main lift pump provides 37 gpm (140.1 Lpm) @ 2100 rpm. One auxiliary lift pump provides 37 gpm (140.1 Lpm) @ 2100 rpm.
Hydraulic oil cooling: One stationary cooler with hydraulic fan to cool conveyor and auger circuit oil.
Filtration: Four 10 micron return line filters, two 10 micron control circuit filters and five 100 mesh sump filters.
BELT CONVEYOR SYSTEMS
Folding belt conveyor for the two-track placer:
Width: 5 ft. (1.52 m).
Length: Up to 31 ft. (9.45 m).
Fold height: 14 ft. (4.27 m).
Hinge system: Two 3.5 in. (89 mm) by 30 in. (762 mm) hydraulic cylinders.
Hinge fold speed: 8 seconds up and 6 seconds down.
Belt drive: Hydrostatic.
Belt speed: Variable speed control up to 491.5 fpm (149.81 mpm).
Conveyor deflector: Directs the flow of concrete at discharge end of conveyor.
Sliding belt conveyor for the four-track placer:
Width: 5 ft. (1.52 m).
Length: Up to 31 ft. (9.45 m).
Extension system: 10 ft. (3.05 m) conveyor extension with two 4 in. (102 mm) by 30 in. (762 mm) hydraulic cylinders acting through a 1:4 cable pulley system to a trolley on a rail.
Extension and retraction speed: 7 seconds out and 7 seconds in.
Conveyor vertical adjustment: Up to 36 in. (914 mm) hydraulic vertical adjustment and an additional 33 in. (838 mm) manual adjustment in 3 in. (76 mm) increments, for a total vertical adjustment of up to 5 ft. 9 in. (1.75 m).
Belt drive: Hydrostatic.
Belt speed: Variable speed control up to 491.5 fpm (149.81 mpm).
Conveyor deflector: Directs the flow of concrete at discharge end of conveyor.
Optional for both sliding and folding conveyors: Pressure-compensated hydraulic belt tensioning for varying haul road height.
Optional for both sliding and folding conveyors: 3 ft. (.91 m) and 6 ft. (1.83 m) conveyor inserts for variable spreading of 26 ft. (7.92 m) and wider.
SPREADER AUGER SYSTEM
Type: Reversible 20 in. (508 mm) diameter hydraulically powered split auger.
Auger speed: Up to 45 rpm.
STRIKE-OFF MOLD
24 ft. (7.5 m) wide: One 4 ft. (1.22 m) right-hand drive section, one 4 ft. (1.22 m) left-hand drive section, and one 4 ft. (1.22 m) power transition adjuster (PTA) section. Balance of inserts per customer specifications. Hydraulically pressure compensated sideplates with adjustment up to 19 in. (483 mm).
FOUR-TRACK SYSTEM
Type: Four hydraulically powered, gear-driven crawler tracks.
Overall track length: 10 ft. 11 in. (3.33 m) includes track fender.
Track pad width: 19.7 in. (500 mm).
Gearbox reduction: 104:1 gear reduction with two-speed hydraulic motors.
Track speeds: Low speed up to 18.3 fpm (5.58 mpm), and high speed up to 36.6 fpm (11.16 mpm).
Track height adjustment: Each track adjustable in 6 in. (152 mm) increments for 12 in. (305mm) manual adjustment with 36 in. (914 mm) hydraulic adjustment.
Track positioning: Each track has manual pivoting track mount arms which allow track to pivot 19.5 in. (495 mm) to the outside and to the inside from the straight ahead position.
TWO-TRACK SYSTEM
Type: Two hydraulically powered, gear-driven crawler tracks.
Overall track length: 13 ft. 9 in. (4.19 m) includes track guard.
Track pad width: 19.7 in. (500 mm).
Gearbox reduction: 104:1.
Track speed: Two-speed, low @18.3 fpm (5.58 mpm), high @ 36.6 fpm (11.16 mpm).
Track height adjustment: Each track is adjustable in 6 in. (152 mm) increments for 12 in. (305 mm) manual adjustment with 36 in. (914 mm) hydraulic adjustment.
WEIGHTS (variable, depending on number of options)
Four-track transport weight: 106,000 lbs. (48,082 kg) without strike-off mold and conveyor.
Four-track operational weight: 182,000 lbs. (82,555 kg) with strike-off mold and conveyor, placing and spreading 32 ft. (9.75 m) wide.
Two-track transport weight: 70,000 lbs. (31,752 kg) without strike-off mold and conveyor.
Two-track operational weight: 90,000 lbs. (40,824 kg) with strike-off mold and conveyor, placing and spreading 32 ft. (9.75 m) wide.
DIMENSIONS
Placing/spreading width: Up to 50 ft. (15.24 m).
Operational length with folding conveyor: 25 ft. 2.4 in. (7.68 m).
Operational length with sliding conveyor: 46 ft. 11 in. (14.3 m).
Operational width: Up to 75.03 ft. (22.87 m).
ATTACHMENTS AVAILABLE
Four corner outrigger system, manual operation.
Four corner outrigger system, hydraulic powered.
High-pressure water system.
Low-pressure water system.
Frame extensions.
Conveyor inserts.
7500 series strike-off mold with reversible 24 in. (610 mm) diameter hydraulically powered split auger.
Strike-off inserts.
Twin belt conveyor systems.
Other options are available to customize machine to accommodate applications and customer needs.
Download The GOMACO Full Line Brochure (PDF)
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