GOMACO Corporation: GHP-2800 Slipform Paver

"Benefits You Can Count On With A GHP-2800"

Superior Rideability
High-Production
Versatility
Job-Proven
Quality
Durability
Visibility
Serviceability
Mobility
The "GOMACO" Edge
Safety Design

The job-proven GHP-2800 is preferred by contractors throughout the world. All of the features that have made the GHP-2800 slipform paver "number one" in universal paving markets are still standard.

The GHP-2800 features upgrades in technology and exclusive GOMACO designs to provide easier setup, operation, maintenance and troubleshooting, but this paver is chosen for its reputation for a quality end product.

* Emission Controlled Tier II Engine

* Optimum Engine Performance

* Revolutionary Cooling Package

* Retractable Pedestal Console

* Lower Profile Provides Visibility

* Shroud Lifts For Easy Service Access

* T-Beam Rail For Positioning Mold

* Easy Access 3-Position Ladder

* Ease Of Transport And Job-Site Mobility

* Superior Rideability Results

* First G21 Operating System On A Mainline Paver

* "Smart" Cylinders For Steering On The Four-Track

* Selective Steer System On The Four-Track

* Electronic-Over-Hydraulic Circuitry

* Hydrostatic Drive System

* Modular Hardware

* Dual Telescoping Frame

* IDBI Ready For Paving Widths Up To 15 ft. (4.6 m); And Options Are Available For Wider Widths

* Forward Mounted Vibrator Modules Tilt In And Out

* Designed With Safety Features

* Two-Track And Four-Track Options

High Production, Superior Rideability, Versatility with Multi-Application Capabilities Throughout the World

* GHP-2800 multi-application capabilities include airport runways, primary and secondary roads, highways, city streets, ramps and approaches, parking lots, alleys and shoulders.

* The two-track and the four-track GHP-2800 will meet the strictest specifications and provide superior rideability results on slipform paving projects throughout the world.

* Designed with multiple safety features such as emergency stops on strategic areas of the machine and a low-profile engine shroud providing excellent operator visibility.

* The modular GHP-2800 slipform paver features state-of-the-art, electronic-over-hydraulic circuitry, dual-telescoping framework and enhanced on-site mobility and job-to-job transportability.

High-Performance Hydraulic System Electronic-Over-Hydraulic Circuitry

The GHP-2800 Features a High-Performance Hydraulic System. Every Circuit is Electronic-Over-Hydraulic for Easy, Accurate Adjustment and an Instant, Controlled Response.

* Track Circuits: Tandem Closed-Loop Hydrostatic Pump

* Vibrator Circuits: Open-Loop, Load-Sensed Hydraulic Pumps

* Auger Circuit: Tandem Closed-Loop Hydrostatic Pump

* Grout Box Auger/Tamper Circuit: Open-Loop, Load-Sensed Hydraulic Pump

The Digital Power of GOMACO’s Exclusive G21 Operating System

G21 is GOMACO’s award-winning, proprietary software and control system. GOMACO was recognized for its commitment of resources to the development of this revolutionary software and operating system that combines intelligence with simplicity for GOMACO construction equipment. It is one of the few operating systems awarded a Top 100 Award from Construction Equipment magazine and a Top Innovations Award from Equipment World magazine. The G21 operating system is exclusive to GOMACO.

Outstanding Features Provide Today's Contractor With The Ultimate Paving Machine Of The Future!

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GHP-2800 Features State-Of-The-Art Technology

* GOMACO's GHP-2800 features state-of-the-art electronic-over-hydraulic circuitry. This system offers increased control features on the paver, providing paving accuracy and ease of operation.

* The exclusive GOMACO control system features self-diagnostics and intelligent electronic-over-hydraulic control of grade and steering. This includes dual grade for sensoring stringline on both sides of the machine simultaneously.

* The unique counter-rotation programming allows the paver to turn 360 degrees within its own dimensions, providing excellent job-site mobility.

* The Sauer-Danfoss hydrostatic track drive system on the GHP-2800 includes a heavy-duty, over-pressure protection pump system that prevents pressurized loss and heat build-up. This high-performance, low-maintenance system provides a travel range from a smooth uninterrupted minimum to maximum travel speed.

* The GHP-2800 has one of the fastest tracking speeds in the industry which allows contractors to move the machine from one spot to another or for loading to transport from one site to another. The travel speed of the GHP-2800 two-track paver is 123.5 fpm (37.64 mpm) and 70 fpm (21.34 mpm) for the four-track paver.

* The vibrators and the tamper bar are hydraulically-powered, have an automatic on/off control switch, and are synchronized with machine movement. The vibrator positioning is hydraulically-controlled for ease in start-up and finish.

* The GOMACO quick attach/detach mold system provides quick and easy interchangeability of mold profiles. The "T" beam mounting rail provides more versatility when positioning the mold under the machine. The mold can be positioned anywhere across the width of the "T" beam.

* The engine module is independent of the main frame construction. Fuel and hydraulic reservoir modules are also independent of the paver's main frame. The GHP-2800 design provides simple access to all maintenance points for serviceability.

GHP-2800 Designed For Ease In Transport

The GHP-2800 is designed to meet hauling widths with the paving mold and the paver's tracks still attached. The two-track paver with a 12 ft. (3.66 m) wide mold fits within a transport width of 12 ft. (3.66 m) and a transport length of 19 ft. 3.5 in. (5.88 m). The four-track has a transport width of 8 ft. 2.5 in. (2.5 m) and a transport length of 36 ft. (10.97 m) with tracks.

Bar Insertion Systems Designed To Fit Your Project Specifications

GOMACO offers several bar insertion systems that are designed to accommodate your project specifications. Hydraulic cylinder, air-powered and manual insertion are the three types of bar insertion. Bar inserter attachments include the frame-mounted, mold-mounted, sidemounted, and trailing form. GOMACO’s bar inserters provide easy and accurate bar placement at an exact job specification.

Female keyway with hydraulic side bar insertion and vibration to the bar - The hydraulic system includes vibration to the bar. Vibration is applied to the bar during insertion, which provides consolidation of concrete around the bars. This system requires one vibrator circuit. The minimum slab depth required is 12 in. (305 mm) and the maximum bar length is 30 in. (762 mm).

The frame-mounted bar inserter accurately places the transverse bar for the longitudinal joint. The inserters place the bars behind the vibrators. The bar spacing is determined by a timing wheel mounted to the crawler track.

The trailing form with air-powered or manual bar insertion is designed to trail the track on two-track pavers. This system will accommodate most types of bars.

Also available are the sideplate extension with air-powered L-bar insertion and GOMACO's air-powered side bar insertion for male keyway.

GOMACO’s Control System Easily Interfaces With New Stringless Technology

GOMACO Corporation has the control system of the future. The G21 technology allows GOMACO’s slipform pavers, trimmers, and placer/spreaders to be controlled by an automated 3-D machine-control system and not by stringline. The 3-D control system is adaptable to the exclusive G21 control system. This system can accommodate radii or superelevations automatically according to design data.

Real-time navigation systems allow the project data created in the CAD system to be directly put into the paving process. There is no stringline installation or maintenance. The stringless control systems can save you time and money.

Unparalleled Accuracy With The GOMACO Power Transition Adjuster (PTA)

GOMACO’s hydraulically powered transition adjuster (PTA) provides on-the-go transitions in the crown of the concrete slab.

A switch in the operator’s console controls the PTA in a positive or negative (up or down) motion. This eliminates the crown in the paving mold/slab or brings the crown back into the mold/slab. These transitions are necessary in paving through superelevations and intersections. This simple solution provides an easy method for an operator to perform a smooth transition where necessary and accomplish the required slab profile as specified.

GOMACO’S Sensor Equipment Is Reliable And Cost Effective

Sensor line and sensors provide the grade and steering information linked to the GOMACO G21 digital operating system, located on the operator panel.

The GOMACO electronic-over-hydraulic sensor system provides intelligent control of grade and steering for paving accuracy, superior rideability and ease of operation.

GOMACO sensor line is designed specifically for electronically controlled equipment. GOMACO line rods are 3/8 in. (9.5 mm) diameter plated steel. The 18 in. (457 mm) length of the line rods allow an adjustment range of 12 in. (305 mm) for sensoring accuracy. The line rod clamps are rustproof and durable, made of solid aluminum.

GOMACO’s 48 in. (1219 mm) long sensor line stakes are machine tapered for easy driving and fast setup. The 3/4 in. (19 mm) diameter stake resists bending.

Ultimate Paving Systems


Auger/Strike-Off Mold	Open-Front Mold

(1) The front split auger serves to spread the concrete to a predetermined width. The right-hand and left-hand drive are independently controlled with variable speeds up to 62 rpm.

(2) The strike-off is split for full, independent control. Both strike-off plates can be vertically controlled on the right and left sides, to meter material into the mold.

(3) The GOMACO grout box auger is for control of material through extreme transitions or superelevations. It prevents grout from collecting on the top and on the edges of the slab.

(4) Vibration is provided to the throat area of the mold for consolidation of concrete. The vibrators, with an automatic on/off control synchronized with machine movement, are hydraulically powered with variable speeds up to 10,500 vpm. The vibrator positioning is hydraulically controlled for ease in start-up and finish.

(5) The GOMACO tamper bar system tamps down the aggregate even with the surface of the pan, and assists in consolidation. The tamper bar is hydraulically powered with an automatic on/off control, synchronized with machine movement.

(6) The finishing pan serves to level the concrete.

(7) Adjustable stainless steel is exclusive to the GOMACO system. This seals the voids and provides a superior GOMACO finish.

Molds Available for the GHP-2800

• 3100 series open-front mold with a 14 in. (356 mm) auger and a maximum speed of 77.9 rpm @ 28 gpm (106 Lpm) flow.

• 3100 series auger/strike-off mold with a 16 in. (406 mm) auger and a maximum speed of 79.3 rpm @ 24 gpm (90.9 Lpm) flow.

• 5000 series open-front mold with a 16 in. (406 mm) auger and a maximum speed of 55.8 rpm @ 24 gpm (90.9 Lpm) flow.

• 5000 series auger/strike-off mold with a 20 in. (508 mm) auger and a maximum speed of 60.5 rpm @ 24 gpm (90.9 Lpm) flow.

The 3100 series mold and stainless from front to back is 48 in. (1219 mm) and the 5000 series mold and stainless is 60 in. (1524 mm).

Edge Slump Control From GOMACO

GOMACO offers edge slump control to accommodate slump and mix design. Edge slump control is available in hydraulic or manual adjustments in the mold.

Vertical Hinged Sideplates

GOMACO’s Vertical Hinged Sideplates have hydraulic control for ease in start-up from an existing slab. The 4 in. (102 mm) cylinder stroke allows the split sideplates to open and close. This provides less labor and a smoother transition to the new slab. The Vertical Hinged Sideplates can be raised or lowered up to 19 in. (483 mm) to negotiate headers and other obstacles. The Vertical Hinged Sideplates are for four-track pavers only.

Integral Curb

A high-production feature on GOMACO slipform pavers is one-pass slipforming with integral curb on one or both sides of the slab.

GOMACO Auto-Float^®

The GOMACO Auto-Float is available as an attachment for the GHP-2800 and all GOMACO slipform pavers. It is designed to automatically seal the concrete surface during the paving operation.

Click the graphic to the right for additional information.

Safety Features With The GHP-2800

The GHP-2800 is carefully designed to give years of dependable and safe service. Emergency stop buttons are located on strategic areas of the machine. The E-Stops are on the operator's console and on corners of the machine. Another safety feature includes a backup alarm, which is designed to alert personnel around the machine when the tracks are set to operate in reverse. Other safety features include quiet operation, track guards, warning decals, an operator's manual, and a safety manual. GOMACO machines are also designed to provide the operator maximum visibility over the entire paving operation. GOMACO Corporation recommends the implementation of all safety procedures.

Only GOMACO offers "smart" cylinders to aid in the setup and operation of the four-track paver, especially in minimum-clearance projects.

Steering control has been simplified with the exclusive "smart" cylinders, used for dependable steering control feedback, eliminating the sprocket, chain, and potentiometer at the top of each leg.

The "smart" cylinder reduces moving parts and eliminates the physical adjustments to the steering system.

GOMACO's exclusive G21 digital controller now makes it possible to have push-button steering setup. The "smart" cylinders can be taught the desired degree of leg rotation, so that the tracks do not strike any object in minimum-clearance requirements. The operator has the option of overriding this setting.

High Production And Serviceability Are Key Factors On The GHP-2800

High production and serviceability are key factors of the GHP-2800. Over 10 percent more fuel capacity combined with Tier II fuel efficiency provide an extended day of paving, resulting in higher production.

The segmented fiberglass shroud provides ease in serviceability. One section lifts up to allow access to the engine and service points. The battery box is relocated outside of the engine compartment for easier accessibility. The hydraulic pressure gauges have been changed and relocated to improve their organization.

"The Quietest Paver In The World" Provides Optimum Performance

GOMACO's GHP-2800 was built around the increased horsepower of the new electronic Tier II Caterpillar C9, 8.8 Liter diesel engine with 335 hp (250 kW).

The new electronic Tier II compliant engine reduces emissions and meets the required industry emission control standards being mandated for off-road diesel equipment throughout the world. The engine provides cleaner combustion and is tuned to achieve optimum performance.

The GHP-2800 features a revolutionary cooling package module incorporating a centrifugal fan for noise reduction and added cooling capacity.

GOMACO's GHP-2800 features a sound insulation package, and combined with the new cooling system, makes it the quietest paver in the world. The GHP-2800 will meet or beat all international noise standards.

The new cooling system incorporates the charge-air cooler, the oil cooler, and the engine radiator in one cooling package. A centrifugal fan, one of the first in the industry used on mobile equipment, has specially built blades with an air-foil shape to maximize air movement with the least amount of noise. It is remotely driven by hydraulics and is no longer attached to the engine. The muffler and air cleaner are internal to the new fiberglass shroud to reduce noise and increase operator visibility.