GOMACO Corporation

GOMACO Corporation manufactures curb and gutter machines, concrete slipform pavers, placer/spreaders, trimmer/placers, cylinder finishers, canal machinery and accessories ideal for any concrete construction project.

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This GOMACO SL-450 concrete cylinder finisher is lining a canal in the Olmos District of Peru. The crew is also utilizing a GOMACO RC Conveyor to place the concrete, and a double line 2000 Series Spanit_® work bridge.

Photos by Ric Moser, GOMACO Corporation

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GOMACO World Vol. 40, No. 2

THIS is a Paving Project— The I-15 CORE (Special Edition)

Provo River Constructors pave 24 miles (38.6 km) of interstate with GOMACO equipment in Utah.

Download or read GOMACO World
Vol. 40 No. 2, in PDF format

Four-Track T/C-5600 Texture/Cure Machine

GOMACO's new four-track T/C-5600 texture/cure machine is equipped with four crawler tracks and the G+_® control system for electronic-over-hydraulic steering and grade control. The four-track design allows for All-Track Steer (ATS) for easy transport and width changes, and the frame design has the structural integrity to go up to 56 feet (17.07 m) wide.

The T/C-5600 features a new walking end car with cure tank. Frame sections can be added or removed by turning the tracks 90 degrees, and walking the end car with attached cure tank to the required width. The T/C-5600 has the all new Tracer Texture Control for tining depth accuracy, and the exclusive GOMACO G+ control system has self-diagnostics for grade and steering.

Download The T/C-5600 Texture/Cure Brochure (PDF Format)

G+ Connect - A Revolutionary Control System For GOMACO Equipment

The new, proprietary CAN-based network on GOMACO products that allows fast, two-way communications between all accessories and the G+ controller.

GOMACO's exclusive G+ Connect is a closed-loop control system for both the electronics and hydraulics on GOMACO pavers. The closed-loop system between the paver's valve drives and various sensors means unparalleled accuracy. The sensored feedback ensures tighter, faster, and more accurate machine corrections. G+ Connect utilizes a CAN (control area network) network allowing all of the components of the system to easily communicate with each other for precision setup and paving. At the heart of G+ Connect is the G+ control system, GOMACO's proprietary software and control system.

Download The G+ Connect Brochure (PDF Format)

GT-3200 Paver Featured For Sidewalks

The GOMACO GP-3200 has been designed specifically for sidewalks in rehabilitation projects. It has a rear-mounted mold and a folding conveyor that swings in to avoid obstacles, making it a great choice for zero-clearance and minimum-clearance sidewalk projects.

Download the GT-3200 Sidewalk
Paver Brochure (PDF)

GP-2400 Slipform Paver

The new GOMACO GP-2400, available with two or four tracks, is the economical slipform paver.

Two-track or four-track slipform paver.
Simple to operate with the new GOMACO designed G+_® control system.
Range of paving widths up to 16.5 feet (5 m) with the standard telescoping frame. Widths up to 24 feet (7.5 m) with frame inserts.
T-beam mounting rail for accurate and quick mold positioning, quick mounting, and removal of the mold.
Ultimate operator visibility.
Powered by a 174.5 hp (129.5 kW) Caterpillar_® diesel engine.
Travel speed up to 105 feet per minute (32 mpm) on the two-track paver and up to 96 feet per minute (29 mpm) for the four-track paver for fast job-site mobility.
Designed for minimum machine transport width for faster, easier, cost effective job-to-job mobility.
3100 series open-front mold.
Right-side or left-side barrier with four-track paver.

Download The GP-2400 Slipform Paver Brochure (PDF Format)

Left-Side And Right-Side Barrier With The 4400

Left Side

Right Side

Pour off the right-side and left-side with the 4400 ultimate barrier paver.

GOMACO U-shaped operator's platform, with vibration isolation, puts the operator comfortably on top of the action.
Control console slides from side-to-side for ultimate operator control. When not in operation, the console locks safely away in center position. New proprietary G+_® control system operates in multiple languages.
Power-optimized Cummins QSB3.3, 99 hp (74 kW) diesel engine.
Hydraulic leg height adjustment of 36 inches (914 mm), manual adjustment of eight inches (203 mm).
Piston-style legs with bearings on both ends of the inner tube eliminate steel on steel contact. Steel keyway on cylindrical inner tube provides steering control.
GOMACO-exclusive trailing stainless steel for a superior finish.
Barrier Hook-and-Go mold mounting system for barrier up to 39.4 inches (1000 mm) tall. (Side-mount option available for taller or existing profiles.)
Track circuits provide up to 37 feet per minute (11 mpm) operating speed and up to 98 feet per minute (30 mpm) for job-site mobility.
Front and rear telescoping legs on both sides.
Industrial strength molded leg caps provide component protection.
4400 series auger built with pitch and speed designed specifically for low-slump concrete.
16 inch (406 mm) diameter auger.
Four-way hydraulic positioning allows perfect placement of the auger for concrete receiving and delivery to the mold on either side of the 4400.
1. Pivoting Tilt
2. Pivoting Swing
3. Longitudinal Slide
4. Sideshifting
Optional molds available for barrier, parapet, curb and gutter, and sidewalk.

Download The 4400 Barrier Paver Brochure (PDF Format)

Paver-Mounted GSI^®

Immediate smoothness readings are available with the GSI on-board your paver. The paver-mounted GSI is a cost-effective quality control tool that is quick and easy to install on your GOMACO paver. Since it's on-board the paver, any interference with the rest of the paving train or finishing crew is minimal. It also has the capability of reading multiple traces, from one to eight.

The effectiveness and quality of the GSI has been verified by contractors on projects around the world and by independent studies.

Download The GSI Brochure (PDF Format)

Hydraulic Side Bar Inserter (SBI)

The GOMACO Hydraulic Side Bar Inserter (SBI) is designed to insert straight tie bars into the side of a newly paved slab using hydraulic force to insert the bar. Vibration, which is adjustable in a range of 2000 to 6000 vpm, is applied to the bar during the insertion process to assist with penetration and also consolidation of material around the bar. The insertion apparatus maintains its position with the side of the slab, as the paver continues to move forward during insertion of the bar. The SBI can be fitted to either the left side or right side of the paver or an inserter can be placed on both sides.

Download The Step By Step - Hydraulic Side Bar Inserter (SBI) Brochure (PDF Format)

More on the Hydraulic Side Bar Inserter.

Commander III 4-Track Features Roller Frame

A roller frame provides easy and accurate width changes. The Commander III's frame hydraulically telescopes on the left side up to 6 ft. (1.83 m). The dual rollers, mounted to the top and bottom of the outer frame tubes, position the inner tube and reduce the amount of surface to surface contact area. This reduces friction and drag as the inner tube rolls when telescoping. The roller frame was originally developed for the Commander III with a V2 mold. The V2 is GOMACO's dual mold system that is hydraulically adjustable for paving at different widths. The roller frame provides a fluid action as the V2 mold is making on-the-go width changes for tapered slabs. The roller frame is now standard on all GOMACO Commander III four-track machines. It can also be retrofitted in the field on existing Commander IIIs.

Download The Commander III Brochure (PDF Format)

Optional Folding Rear Conveyor Belt For 9500

The GOMACO 9500 trimmer or placer is available with an optional rear folding conveyor. The option allows the conveyor to remain attached to the 9500 during shipping. The 9500's shipping length, with the new folding rear conveyor, is just 41.8 feet (12.7 m). Shipping height is 11.5 feet (3.5 m).

Engineers rebuilt the conveyor to be stronger and more rigid with a new, truss-style framework. The switch to control the hydraulic folding operation of the conveyor can be placed at different locations on the back of the machine. The belt width is still 36 inches (914 mm) and the rear conveyor maintains its 160 degree swing with hydraulic height adjustment up to 12 feet (3.7 m). It has a 34.7 feet (10.6 m) long reach during machine operation, with a conveyor belt speed of 504 feet per minute (153.6 mpm) allowing fast placing of concrete or removal of trimmed material.

Download The 9500 Brochure (PDF Format)

5400 Series Paving Mold

The new 5400 series paving mold is designed with a structural integrity that is unmatched in the industry.

New box design with durable 0.5 inch (13 mm) paving skin

Vertically-adjusting mold mount for precise leveling of mold to machine

Telescoping end sections with 12 inches (305 mm) of width variation on each side are available

Standard paving depth is zero to 24 inches (610 mm)

Edge slump adjustment

Hydraulic Vertical Hinged Sideplates, self-contained inside the mold for track clearance

Split, pressure-compensated sideplates

Folding sideplate wings for transporting without removing

Pivoting mold mounting beam to eliminate stress points

Self-supported TA is hydraulically driven with 3.5 inch (89 mm) ACME screws for up to a six inch (152 mm) crown

Front and rear top T-bar on mold for attaching accessories and structural integrity

Inserts are bolted together with front and rear alignment pins for easy mold assembly

New vibrator mounting tube attaches to T-bar on mold
– Vertical vibrator lift
– Rear lubrication system with grease zerks accessible from the work bridge

New strike-off
– Mounted on paver frame T-rail, independent of the mold
– New modular design with wedge lock system for ease in changing widths
– 10 inches (254 mm) of hydraulic height adjustment
– Hydraulic crown adjustment

Spreader plow mounted to paver frame T-rail, optional auger available

Tamper bar optional

Download The 5400 Series Mold Brochure (PDF Format)

5400 Series Bar Inserter

New rear-loading, front-inserting bar inserter for the 5400 series paving mold.

Bar inserter is rear loading and front inserting for ease of use
Mounts to the mold’s T-bar and allows crown changes, on-the-go, while maintaining a constant bar depth
Individual depth guides on right and left side of bar inserter keep bars parallel to top of slab
Holds up to 50 bars in bar magazine and bar loading chain system
Bar box is mounted to paver’s rear T-rail for easy access and loading of bar magazine
Reliable bar loading chain system with bars traveling in a flat, straight path for maximum efficiency
Inserts bars up to 7.5 inches (190 mm) deep into concrete slab
Accommodates #3 (0.375 inch/10 mm) to #8 bars (one inch/25 mm) in diameter and 20 to 40 inches (508 to 1016 mm) in length
Proximity switch control for automated bar loading system
Rear lubrication system with grease zerks accessible from work bridge
Controlled with GOMACO’s new G+ system

Download The 5400 Series Bar Inserter Brochure (PDF Format)

C-450 With Transitional Framework

The transitional framework is a new design option for the GOMACO C-450 cylinder finisher that provides faster assembly and weight savings compared to wider-width finishers requiring an overhead truss system. The new frame features transition sections connecting the C-450's standard 24 inch (610 mm) tall framework to the 42 inch (1067 mm) tall framework used on a C-750 finisher. The frame sections only need to be pin-connected and the cross arms bolted in place.

The overhead truss system is eliminated. The transitional framework not only provides a much quicker assembly time, but also decreases the weight of the machine considerably. It is estimated to be eight pounds per foot (11.9 kg/m) lighter when compared to a machine with overhead truss.

The transitional framework sections can also be removed and the C-450 can finish at smaller widths with its standard 24 inch (610 mm) framework. The new framework allows the versatility of two finishers in one for the narrower or wider widths. The new transitional framework can be added to new or existing C-450s.

GOMACO's line of bridge deck finishers is also available with the optional third wheel assist on the standard bogies to further distribute the machine's weight while traveling on the rails. The optional third wheel assist bogies, on each side of the finisher, consist of two single-wheel idler bogies attached to the spreader beam. It's a simple modification that can be made to any C-450 or C-750 to help spread the weight out and reduce the wheel load on the overhang brackets.

Download The C-450 With Transitional Framework Brochure (PDF)

More on the C-450 with transitional framework.

IDBI For Four-Track Commander III

Introducing the new GOMACO IDBI attachment... an independent unit providing dowel bar insertion behind the paver –

Independent attachment is self-contained, self-powered, and inserts transverse joint bars in pavements up to 16 feet (4.88 m) wide.
IDBI powered by its own engine.
Outriggers on the attachment have 48 inches (1219 mm) of stroke and can be hydraulically lowered and placed on the ground to support the full weight of the IDBI as it is attached to or detached from the paver.
CAN cable connects IDBI’s controls to controller on the Commander III and allows the two systems to communicate.
New adjustable-height bar extractors allow contractors to quickly and easily change the setup for different bar sizes for insertion requirements.
New IDBI tray is stronger, more compact and is designed to make width changes easier.
IDBI is equipped with the new GOMACO G+ control system, which features a graphical display, and has easy to learn, operator-friendly controls.
New piston-style legs utilize a round inner tube and a keyway for steering control.
Hydraulically telescoping leg pivots on the rear of the paver.
Insertion forks designed to reduce amount of scarring and vibration enhances consolidation of concrete around bars.

More on the IDBI for the Commander III, and see the IDBI Process, Step-By-Step.

Click here for the IDBI for full-width paving.

	Video Clip: Commander III With IDBI (4.4 MB, 4 minutes long)
	Video Clip: IDBI Attachment (24.7 MB, 8 minutes long)
	Video Clip: Commander III IDBI Ramps (24 MB, 7:30 minutes long)
Windows Media Video (.wmv), requires Windows Media Player

Skewed Tining Option Available For GOMACO Texture/Cure Machines

GOMACO’s T/C-400 and T/C-600 texture/cure machines are available with a skewed tining option. It allows the travel of the tining bars to run a skewed path, while the frame of the machine is square to the slab.
The sprockets, chains and mechanical items are off-the-shelf pieces that are easily replaceable. The tine rake on the texture/cure is gear driven, and as the rake travels across the slab, it moves longitudinally in a sliding mechanism through the mount. The final tining pattern is accomplished simply by sliding only the rake.
The sliding movement is controlled by a timing chain that runs from end panel to end panel. The direction of the skew can easily be changed by moving the timing chain either over or under the main drive sprocket on the upper carriage.
The skewed tining option can also be easily retrofitted to existing GOMACO texture/cure machines.

More information on the T/C-400 and T/C-600 texture/cure machines

	Video Clip: Skewed Tining For Texture/Cure Machines (4.1 MB, 77 seconds long)
Windows Media Video (.wmv), requires Windows Media Player

Standard Features For GT-3600

Hook-And-Go Mold Mount System

Travel speed has nearly doubled from 66 fpm (20 mpm) to 125 fpm (38 mpm) with the two-speed track system.

Sensor arms and mounts which are more durable, lighter weight and easier to manipulate.
Hook-and-Go mold mount system has no pins or latches and makes it quick and easy to change molds. Simply drive the GT-3600 up to the mold and hook the mount to a special attachment plate. The operator hydraulically lifts the mold and goes back to work slipforming the project.
Legs have been increased in diameter by 15 percent, providing the same quality and durability as the Commander III legs.
Push-button steering control setup with "smart" cylinders.

More on these features and on the GT-3600

	Video Clip: GT-3600 Features (5.2 MB, 4 minutes long)
	Video Clip: GT-3600 Stringless Islands (24.4 MB, 8 minutes long)
	Video Clip: Hook-and-Go (2.6 MB, 60 seconds long)
Windows Media Video (.wmv), requires Windows Media Player

V2 Mold For Quick & Easy Width Changes

Hydraulically adjustable dual mold for various paving widths
On-the-go paving of tapered slabs
Separate mold control for the right and left side
Features dual PTAs for crown height adjustment
Telescoping plow framework to accommodate width changes
Available with a curb profile on one or both sides for municipal paving
Designed to adapt to virtually any paver/prime mover in the field today
GOMACO is developing programmable width changes through our G21 controller and other possibilities for the new V2

24-Hour Emergency Service Assistance At 712-364-4716

A representative from the GOMACO Service Department is available 24 hours a day. If you have an after-hours emergency, dial 712-364-4716, and you will be connected with the GOMACO service representative on call. During normal business hours, simply call the Service Department for assistance.

The All-American Canal: Slipforming 72 Feet (21.9 m) Wide...

The All-American Canal lining project through the Imperial Valley in California called for a new 23 mile (37 km) long concrete-lined canal to be built parallel to the existing unlined canal. Coffman Specialties would pave the six mile (9.7 km) long Reach Two and four mile (6.4 km) long Reach Three of the project. The proposed lined sections would have slopes of 1.75:1 and 2:1, a bottom width of 50 feet (15.2 m) and a top width spanning 150 feet (45.7 m). Slope widths would be variable, between 37.3 feet (11.4 m) and 45.7 feet (14 m). The concrete lining itself would be four inches (102 mm) thick.

The first piece of equipment was the canal paver. A GOMACO GP-4000 prime mover, set on top of a ten foot (3 m) tall framework, provides the power plant and control system for the paver. The mold sections are a 5000 series paving mold which were slightly modified. The machine is mounted on four tracks that are 13 feet, nine inches (4.2 m) long, 30 inches (762 mm) wide and 40 inches (1016 mm) high.

The second piece of equipment GOMACO built for the All-American Canal paving train is the water stop machine. It follows directly behind the canal paver inserting the transverse water stop material every 15 feet (4.6 m).

The work bridge is the third piece of equipment in Coffman Specialties’ canal paving train. It gives finishers a platform to work from and is used to cure the finished canal. A curing mechanism is mounted to the back of the work bridge to apply the white curing compound.

Click here to learn more about the All-American Canal project.

Click here to read about the project in GOMACO World Vol. 36, No. 2.

Place Stone Base Material With The PS-2600

A PS-2600 placer/spreader was recently equipped with a rock hopper to place stone base material. It was developed for a customer who needed a machine that could carry base material, rather than pushing a pile like regular placer/spreaders. After the material placement, the machine can be converted back to a traditional PS-2600 by removing the rock hopper and attaching the concrete strike-off and belt.

More on the PS-2600 placer/spreader and the rock hopper for placer/spreaders

GOMACO equipment will slipform concrete streets and highways, airport runways, curb and gutter, sidewalks and recreational trails, safety barrier, bridge parapet and irrigation canals.

Support equipment includes grade trimmers, concrete placers, concrete placer/spreaders and texturing and curing machines. We also offer equipment to finish flat slabs, bridges, and slopes.

GOMACO will consult on equipment for large or unique concrete paving projects. Our products are offered through a worldwide distributor network for local sales, parts and service expertise.