GOMACO: GT-3600

Everything You've Asked for in a Curb and Gutter Machine!

24 inch (610 mm) Radius
Selective Steer System
Exclusive Control System
Fast Job-Site Mobility
Simultaneous Trim/Pour
Sideshifting Trimmerhead
Vertical Adjusting Trimmerhead
Vertical Adjusting Mold
Sideshifting Mold
High Production
Designed for Transportability
Operator Remote Control for Travel
Designed with Safety in Mind
Excellent Operator Visibility
Stringline or 3D Guidance

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

Multi-Application and More...

Ribbon Curb... Curb & Gutter... Bridge Parapet... Median Barrier... Sidewalk... Recreational Trail... Irrigation Canals & V-Ditch... Simultaneous Trimming & Slipforming... Minimum-Clearance... Slipforming Over Caged Reinforced Steel... Feeding Longitudinal Rebar...

Featuring Versatility and Dependability Worldwide

The GT-3600 uses the simultaneous trim/pour process for maximum concrete utilization.

GOMACO's GT-3600 is one of the most versatile, dependable, and high-production curb and gutter machines with job-proven results throughout the world. The machine is designed with state-of-the-art technology and numerous standard features.

The three-track GT-3600 is a multi-application trimmer/slipform paver. Applications for this machine include curb and gutter, tight radii, cul-de-sacs, safety barriers, bridge parapets, sidewalks, recreational paths, and flat slabs up to 10 feet (3 m) wide. The GT-3600 features GOMACO's patented simultaneous trim/pour concept. The unique design, multiple sensors, and GOMACO's exclusive operating system allow the GT-3600 to automatically slipform a tight radius with ease.

A major consideration in the design is quick and easy job-to-job mobility. The GOMACO GT-3600 is carefully designed with safety features to give years of safe and dependable service. For operator and crew safety, there are emergency stop buttons located on the operator's console and at strategic points around the machine. Other safety features include track guards, warning decals, an operator's manual, and a safety manual. GOMACO machines are also designed to provide safety with the machine operator having maximum visibility over the entire paving operation.

The tethered remote allows the operator to control speed and steering while moving around the operator's platform. The travel control dial dictates the travel speed of the machine in either forward or reverse. The manual steer knob turns the tracks when the steer select knob is in any of the four manual positions.

One of the Fastest Tracking Speeds in the Industry

The two-speed track system provides fast job-site mobility. The travel speed on the GT-3600 three-track machine is up to 125 feet per minute (38 mpm). The low speed provides the smooth crawl necessary for slipforming concrete.

Another feature that makes this machine so versatile is All-Track Positioning (ATP) and All-Track Steering (ATS). Veteran concrete contractors who depend on their machines will testify to the advantages of ATP and ATS, such as getting around and avoiding obstacles, reducing setup time, ease in mounting molds, and loading and unloading for transportation. The Crab Steer feature makes it quick and easy to put the GT-3600 on line.

There are a lot of things you can do with an All-Track Positioning, All-Track Steer machine that would be difficult or impossible to do without it. A GOMACO machine with All-Track Steering is able to slipform a true radius because all of the tracks can turn as the paver maneuvers through the radius. All-Track Positioning gives your machine the ability to position all of the legs, based on requirements, to adapt to various applications.

Also featured on this machine are the piston-style legs for strength and low maintenance. The legs are equipped with "smart" steer cylinders. The cylinders, along with the GOMACO controller, allow the operator to teach the "smart" cylinders the desired degree of leg rotation. This keeps the tracks from hitting any objects in a minimum-clearance situation.

The versatility of the GT-3600 allows for quick and efficient slipforming of safety barrier and bridge parapet.

GOMACO's Hook-and-Go System is Quick & Easy

How Quick Can You Connect? Just Hook And Go!

GOMACO's 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 mold is then hydraulically lifted up and can go to work slipforming the project...just hook and go. New GT-3600 molds are built for this system and existing molds can easily be retrofitted in the field.

	Video Clip: Hook-And-Go (2.6 MB, 60 seconds long)
Windows Media Video (.wmv), requires Windows Media Player

The exclusive, independent adjustable stainless steel troweling section seals and provides a superior GOMACO finish.

Tight-clearance paving is accomplished with the sideshifting capability of the mold.

Paving Without Stringline

A GOMACO GT-3600 slipformed a curb and gutter radius stringfree using 3D controls for the first time in March 1999.

A GT-3600 with 3D stringless controls slipforms the tight radii of parking lot islands.

Here's how 3D stringless paving works: Data provided by the project engineer is converted into a digital model. The digital model is converted into a 3D design file and then is uploaded. The data can be imported from almost any CAD system. The 3D control computer is interfaced with the GOMACO exclusive operating system on the GT-3600. When it's time to start paving, the operator simply opens up a map of the project on the computer and chooses the desired reference line. The computer has a touch-screen interface, so it's just a matter of selecting where to pave.

The operator navigates via the operating screen in order to know that the equipment is positioned correctly to begin paving. The Total Station takes measurements off predetermined reference points to orientate its position. Then, the Total Station is aimed at the prism on the machine and it begins the tracking process. A GPS receiver is mounted on the front mast, which is used for machine orientation. The GPS unit can be switched over to a second Total Station if the work site doesn't allow GPS reception.

"The 3D control system is connected to the exclusive operating control system via the CAN (Controlled Access Network) cables, which are an integral part of each machine that GOMACO produces," Kevin Klein, GOMACO's Vice President of Engineering/Research and Development, said. "The computer system contains the design file for the project which the contractor is building. As the 3D instruments track the machine, the exact position of the machine is sent to the computer system and that exact position is then compared to the project design file. From there, the 3D control system places any relevant steering and grade control information onto the CAN line for the operating control system to capture and use in steering the machine, as well as maintaining the proper elevation. The operator can focus on controlling the travel speed of the machine, controlling the vibration, and concrete delivery. The GT-3600 controller will take care of steering and grade, by monitoring the inputs from the 3D control system."

Once a paving run is completed, the operator can simply return to the map on the screen, and choose where to pave next. Or, for example, if an area isn't ready for paving yet, because the grade isn't prepared or some other factor, they can go anywhere else on the job site.

GOMACO equipment is no longer dependent on stringline to dictate when and where crews can work. Workers on stringless projects don't have to worry about the stringline... setting it correctly, bumping into it and creating errors, or the time and expense of setting and removing it.

GOMACO equipment that is equipped with 3D stringless controls can increase productivity, allowing crews to get more done in a day and decrease their overall expenses.

Click here to read more about the 3D stringless control system.

State-of-the-Art Technology Provides High Production, Versatility, and Easy Operation

Fast Concrete Loading Provides Increased Production

Fast concrete loading provides high-production results. There are two conveyor systems to choose from with the GOMACO GT-3600, the standard belt conveyor and the auger. The standard conveyor for the GT-3600 is 15 feet (4.6 m) long, 24 inches (610 mm) wide, and has a belt speed variable up to 284 feet per minute (86.6 mpm). It is hydraulically powered and reversible with a charging hopper. The belt conveyor is pivot mounted with hydraulic lift and positioning. The mold is designed with extra concrete capacity, to allow slipforming through a tight radius without waiting for concrete delivery.

An auger is also available that provides fast and efficient concrete flow. It has increased flighting spacing with a 16 inch (406 mm) diameter auger with full pitch, for efficient handling of concrete.

The conveyor allows for fast delivery of concrete to the hopper. The access door can be opened for ease of clean up at the end of the day.

The GT-3600 has an optional auger available for concrete delivery.

The GT-3600 sensor arms and mounts are more durable, lighter weight, and easier to manipulate than ever before.

The auger is an alternative to the standard belt conveyor. Either system provides fast and efficient concrete flow to the mold.

Conveyor Belt Wiper

The conveyor belt wiper is a standard bolt-on attachment for the GT-3600 and features segmented blades mounted on individual cushions. This feature allows the cleaning tips to maintain continuous contact without the need for constant adjustment. The spring tension design allows a quick and easy adjustment.

Guillotine-Style and California-Style Curb Depressors

Another feature on the GT-3600 is the optional hydraulic-powered driveway depressors, available for curb and gutter molds. This feature allows the GT-3600 to eliminate wasted material while slipforming through driveways.

Curved Blade: California-style curb depressor has a curved blade that enters the face of the curb, providing a smooth finish.

Straight Blade: Guillotine-style curb depressor has a straight blade that enters the face of the curb while slipforming through driveways.

A GT-3600 uses the guillotine-style curb depressor to block out the curb for a driveway. The California-style depressor would have provided a smooth, rounded finish to the curb line.

Sectionalized Trimmerhead

The standard 30 inch (762 mm) wide trimmerhead with insert sections provides up to a 66 inch (1676 mm) wide sectionalized trimmerhead with right-hand or left-hand discharge available. The insert sections are available in 12 inch (305 mm), 18 inch (457 mm), and 24 inch (610 mm) widths.

Sideshifting Trimmerhead

The trimmerhead can be raised and also sideshifted up to 48 inches (1219 mm) for clearance of obstacles and to allow the GT-3600 to pave right up to the obstacle. The mold can then be hydraulically lifted off the curb and over obstacles.

Hydraulic Vertical Adjustment

The ability to raise and lower the trimmerhead and mold makes the GT-3600 ideal for rehabilitation work and going over driveways, manholes, and other obstacles. The GT-3600 can pave right up to the driveway. Then the operator raises the mold, allowing the machine to travel across the distance of the driveway, without leaving the stringline. The mold is then lowered to grade and slipforming continues.

A GT-3600 uses hydraulic vertical adjustment to slipform up to and over a driveway within a residential area.

-- Select Any Graphic For A Close-Up --

All-Track Positioning (ATP) provides the versatility in our slipform pavers. GOMACO's left-front track features a pivoting power-swing, the right-front track hydraulically extends/retracts, and the rear track hydraulically sideshifts. Each leg has a reinforced steel attachment plate that allows extra leg height adjustment. ATP provides the capability of performing various applications and working with differences in grade elevations and unique job-site logistics.

The centermounted mold on the GT-3600 is built with a "frame around a frame" concept, which is illustrated by the orange sections of framework in these drawings.

The Digital Power of GOMACO's Exclusive Operating System

GOMACO's operating system is a digital control system with graphical display that provides easy to understand icons and multi-language commands. It is a revolutionary proprietary software and operating system that combines intelligence with simplicity for GOMACO construction equipment. The information is presented in full color, commands are presented in full text, and this system can contain multiple languages for operation.

The GOMACO operating system features a 6.5 inch (165 mm) anti-glare display screen with sensor-controlled backlight levels. It provides superior visibility under all operating conditions. Its rugged, shock resistant construction protects it against dust, moisture, and other outdoor elements. The high-brightness, color graphics, and fourteen (14) function buttons provide the ultimate user-friendly operator experience.

First in the Industry to Design a Three-Track Machine to Slipform A 24 inch (610 mm) Radius Curb

The GT-3600 slipforms the tight radii of parking lot islands with ease after having loaded the hopper and charging conveyor prior to starting the island.

The steer sensors automatically adjust trajectory in and out of tight radii as the GT-3600 moves forward.

Unique design allows automatic adjustment of trajectory in and out of a tight radius

Multiple sensors and mold positioning assures perfect placement of concrete through a tight radius.

A 24 inch (610 mm) radius curb is accomplished with the unique machine design, which includes but is not limited to operator station visibility, GOMACO's exclusive operating system, large capacity hopper, mold positioning, multiple sensors, and three-track versatility.

The GT-3600 is designed to eliminate guesswork and automatically adjusts trajectory in and out of a tight radius. The GT-3600 is equipped with three steer sensors. One sensor is located at the front of the mold (sensor 1); one is located at the front of the stainless (sensor 2); and one is aligned with the back of the stainless (sensor 3). As the GT-3600 enters the radius, the operator switches from sensor 1 to sensor 2 with a toggle switch.

The mold on the GT-3600 is positioned to assure perfect placement of the concrete through a radius. Also important for a tight radius is travel speed, mix design, slump of concrete, and grade preparation.

The hopper on the GT-3600 is designed for extra concrete capacity. Loading the hopper and the 15 foot (4.6 m) long, 24 inch (610 mm) wide charging conveyor full prior to going into the radius allows for continuous travel through the radius without having to wait for another concrete delivery.

GOMACO's Selective Steer Controls

Featuring steering choices for job-site mobility and transportability.

Selective steering options can be chosen by the operator when they turn the selective track steering dial to either the stringline steer mode, or the manual steering choices of coordinated steer, crab steer, front steer, or rear steer.

All-Track Steer (ATS) is great for saving time when getting on and off stringline, job-site mobility, and loading and unloading for transport. The ability to steer three tracks of a paver also provides accurate steering control when pouring barrier and parapet, sidewalk, or 10 foot (3 m) wide paving.

ATS provides the ability to steer around a tight radius, rather than sliding on grade. When all tracks have the capability to steer, you eliminate the skid steer action through a radius and produce a high quality end product without continual manual adjustment of the machine sensors. The end product is a radius that is an accurate reflection of the stringline.

		Stringline Steer Mode - This mode is selected when steering is to be controlled by the steering sensors. With the machine on line and in automatic steer, the operator walks the machine in reverse to the existing curb and gutter, utilizing the Reverse Steer feature. Then, flipping the switch to forward steer, the operator starts to slipform.

		Coordinated Steer - For minimum turning radius. When the steer select switch is in the Coordinated Steer position, the steering control dial will control the turning of the tracks. When the dial is in the center position, the tracks will be straight ahead. If the dial is turned left or right from the center position, the leading tracks will turn in the corresponding direction and the trailing track will turn in the opposite direction.

		Crab Steer - Walks sideways for ease in putting the machine on line. When the steer select switch is in the Crab Steer position, the steering control dial will control the turning of the tracks. If the dial is turned left or right from the center position, all tracks will turn in the corresponding direction to walk the machine sideways.

		Front Steer - When the steer select switch is in the Front Steer position and the steering control dial is turned left or right from the center position, the front tracks will turn in the corresponding direction and the rear track will remain straight.


		Rear Steer - When the steer select switch is in the Rear Steer position and the steering control dial is turned left or right from the center position, the rear track will turn in the corresponding direction and the front tracks will remain straight.

Designed For Safety

Operational Visibility and Safety - The operator has a clear view of the conveyor, concrete truck, and the chute man, providing operational safety.

The GT-3600 is carefully designed to give years of dependable and safe service. Emergency stop buttons (E-Stops) are located on strategic areas of the machine. The E-Stops are on the operator's console and on corners of the machine, or they can be positioned at various points on the machine providing optimal use for specific applications.

Other safety features include 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.