Gantry Cranes are self propelled cranes running on rails installed at ground level. The above image shows two such cranes working in tandem. Such cranes are used at -

• Construction sites,
• Ports and harbors
• Workshops where existing columns cannot bear the wheel loads of a bridge crane
• Workshops with low roof tie height that might restrict the height of lift of a regular bridge crane
• Locations where bay lengths are excessive
• Locations where bay lengths do not remain constant
• Sites / projects where crane itself needs to be relocated from one place to another
• Locations where loads are to be shifted from points outside the crane span as in the case of an overhang on either side of the rails

In workshops where part utilization of shop bay is required (as in a tool room attached to a press shop), a Semi-Goliath/Gantry Crane is used. In such a configuration one end-carriage of the crane will travel on the regular gantry rail while the opposite end-carriage will travel on a rail mounted typically on the ground or at a lower elevation.
A gantry crane is typically more expensive than an equivalent EOT bridge crane. However in almost all the relevant cases as mentioned above, a cost analysis shows that it is cheaper to go in for a gantry Crane as against a bridge crane. The cost analysis can be done by taking into consideration the following -

• Cost of gantry girders that are required in case of a bridge crane
• Cost of Columns required for supporting the above Gantry Girders
• Difference in costs of civil foundation for columns (for Bridge Cranes) versus civil foundation for gantry rails (in Gantry Cranes)
• Difference in down shop leads cost of bridge crane versus cable reeling drum and cable cost for a gantry crane
• Gantry cranes can be either of the single girder type or double girder type.

If required, AHE Engineers can advise end users of the type of crane to be installed based on a cost benefit analysis.

Range of Specifications

Safe Working Load	5000 kg to 75,000 kg
Spans	6 m to 40 m
Heights of Lift	As per customer specifications.
Class of Duty / Standards	Class 2, Class 3, Class 4 as per IS 3177 / IS 807. Also available as per FEM, DIN, BS or any other applicable international standards.
Speeds	Selected depending on client specifications / applications / shed dimensions
Crane Control	From floor through Pendant Push Buttons Open Cabin / Totally Enclosed Cabin Radio Control
Drive System	Twin Drive with Squirrel Cage / Slip Ring Induction Motors, through totally enclosed, oil immersed, helical gearbox.
Motors	Foot mounted, IEC Frame Size, Crane Duty motors for Main Hoisting, Auxiliary Hoisting, Cross Travel and Long Travel.
Brakes	Electro Hydraulic Thrusters for all motions. DC/AC Electro Magnetic Brakes or additional brakes can be provided on request.
Power Supply System	To Hoist and Cross Travel through Trailing Cables To Crane through Cable Reeling Drum or any alternate system.

Standard Features of AHE Engineers' Goliath / Gantry Cranes -

• Optimum design ensuring minimum Dead Weight, Wheel Loads, Head Rooms and Clearances, reducing building costs.
• Forged runner wheels on Spherical Roller Bearings, resulting in long trouble free service.
• Hobbed and Run-In Heat Treated Gears machined from High Carbon Steel / Alloy Steels to ensure smooth, silent and durable service.
• Wide range of Heights of Lift, Hoisting, Cross & L

Our wide range of goliath cranes are useful for handling material equipment for various industries and projects. These goliath cranes are applicable in area like :  construction industry, shipping Yards, road sides and other open areas.

Owing to superior quality our comprehensive range find application in :

• Mines
• Quarries
• Heavy Fabrication Unit
• Contracting Firms
• Factories
• Power Stations
• Large Water Works
• Railway Yards
• Harbors
• Water Houses
• Transporters

These cranes are useful for:=

• Shifting of heavy load
• Heavy pipe lying in trenches
• Erection of bulky equipment
• Loading and unloading trucks

We offer our esteem clients with an exclusive range of mono rail crane designed as per the specifications of our clients and latest market trends. It widely used for moving material from one place to another swiftly and smoothly. Fabricated from superior quality raw material our crane is widely accepted across the domestic and international market.
 

We provide our esteem clients with a wide assortment of simple yet rugged jib cranes designed to meet the demands of various industries. These jib cranes are designed as per the specifications and requirements of our clients. Since these jib cranes occupy minimum space. These can be mounted on any existing structure. Jib cranes useful for:

• Material loading and uploading
• Machine loading
• Light assembly work
• Localized fitting
• Material loading

Our exclusive range of mobile gantry cranes are widely accepted in a number of industries, available as per the specifications of our esteem clients. These mobile gantry cranes are fabricated from fine material available with electric chain and manual drive dolly. Having the availability of clamp support connection our cranes have the alternative of getting the clearance width which could be set on a progressive mode.

We manufactures single girder bridge cranes in different configurations. The figure above shows a crane with a box girder and twin drive system. We also manufacture an under slung version as shown in the figure below. Decision regarding the configuration is made depending upon the shed dimensions and lifting requirements of the client. Furthermore, the cranes can be offered either with an electrically operated trolley (EOT) or a hand operated trolley (HOT)again dependent upon the client needs and budget.

Range of Specifications -

Safe Working Load	500 kg to 12,500 kg
Spans	6 m to 18 m
Heights of Lift	As per customer specifications.
Class of Duty / Standards	Class 2, Class 3, Class 4 as per IS 3177 / IS 807. Also available as per FEM, DIN, BS or any other applicable international standards.
Speeds	Selected depending on client specifications / applications / shed dimensions
Crane Control	From floor through Pendant Push Buttons Radio Control
Drive  System	Twin Drive through unique Conical Rotor type Squirrel Cage Induction Geared Motors with built-in fail safe brakes.
Motors	Unique Conical Rotor Type Squirrel Cage Induction Hoisting Motors with built-in fail safe brakes for Hoisting, Cross Travel as well as Long Travel Insulation Class for all motors B/F
Brakes	Built-in Electro Mechanical Brakes for Hoisting, Cross Travel and Long Travel motions.
Power Supply System	To Hoist and Cross Travel through Trailing Cables To Crane through Trailing Cable / MS Angle Iron Conductors / Bare Copper Conductors (depending on customer's choice)

 
Standard Features of AHE Engineers' Single Girder Cranes -

• Optimum design ensuring minimum Dead Weight, Wheel Loads, Head Rooms and Clearances, reducing building costs. 
• Forged runner wheels on Spherical Roller Bearings, resulting in long trouble free service.
• Hobbed and Run-In Heat Treated Gears machined from High Carbon Steel / Alloy Steels to ensure smooth, silent and durable service.
• Amply proportioned Main Girder and End Carriages made up of appropriate rolled sections or from rolled sections with cover plates or fully fabricated construction.
• Well proportioned Dead Axle Type Straight Tread Runner Wheels on Single Girder EOT cranes and Dead Axle Type Taper Tread Runner Wheels on Under-Slung Single Girder EOT cranes.
• Rope Drum fabricated from IS 2062 plate, fully stress relieved and all the long seams are 100% radiographed.
• Standardized sub-assemblies used for complete range ensures quick supply of spares in case of emergencies or routine maintenance.
• All exposed parts primed with Red-Oxide Zinc Chromate Primer and finished with Enamel paint to customers' color scheme.
  

Double girder bridge cranes form a major chunk of orders received by AHE engineers annually. As a result, the company has successfully managed to refine this particular product over time to reflect changing customer needs and evolving technology. The figure above shows a double girder bridge cranes with auxiliary hoist. AHE engineers manufactures double girder bridge cranes without the auxiliary hoisting feature also. Depending on the spans of the factory sheds, the Double Girder Bridge cranes can come either with a single drive system or a twin drive system.

AHE Engineers also makes cranes that have a cabin control feature as is seen in the picture on the left above. Depending on the Safe Working Load of the crane, the Double Girder Bridge Cranes have either a carriage type travelling mechanism or a bogey type travelling mechanism. The range of specifications for Double Girder Bridge Cranes along with their standard features are given below.

Range of Specifications

Safe Working Load	2000 kg to 200,000 kg
Spans	6 m to 40 m
Heights of Lift	As per customer specifications.
Class of Duty / Standards	Class 2, Class 3, Class 4 as per IS 3177 / IS 807. Also available as per FEM, DIN, BS or any other applicable international standards.
Speeds	Selected depending on client specifications / applications / shed dimensions
Crane Contro	From floor through Pendant Push Buttons Open Cabin / Totally Enclosed Cabin Radio Control
Drive System	Single / Twin Drive with Squirrel Cage / Slip Ring Induction Motors, through totally enclosed, oil immersed, helical gearbox.
Motors	Foot mounted, IEC Frame Size, Crane Duty motors for Main Hoisting, Auxiliary Hoisting, Cross Travel and Long Travel.
Brakes	Electro Hydraulic Thrusters for all motions. DC/AC Electro Magnetic Brakes or additional brakes can be provided on request.
Power Supply System	To Hoist and Cross Travel through Trailing Cables To Crane through Trailing Cable / MS Angle Iron Conductors / Bare Copper Conductors (depending on customer's choice)

 
Standard Features of AHE Engineers' Double Girder Cranes

• Optimum design ensuring minimum Dead Weight, Wheel Loads, Head Rooms and Clearances, reducing building costs.
  
• Forged runner wheels on Spherical Roller Bearings, resulting in long trouble free service.
  
• Hobbed and Run-In Heat Treated Gears machined from High Carbon Steel / Alloy Steels to ensure smooth, silent and durable service.
  
• Wide range of Heights of Lift, Hoisting, Cross & Long Travel Speeds to suit every operational requirement.
  
• Amply proportioned Main Girders of Box section, fabricated from IS 2062 plates that have undergone rigorous quality testing. All butt
• welds are 100% radiographed. Main Girders further stiffened with long and short diaphragms.
  
• End Carriages are made either from rolled sections or fabricated from plates.
  
• Well proportioned Live Axle Type Runner Wheels on "L" type bearing housings.
  
• Rope Drum fabricated from seamless pipes (ASTM A-106 Grade B) or from IS 2062 plates. The Rope Drum is stress relieved and the
• long seams are 100% radiographed.
  
• Standardized sub-assemblies used for complete range ensures quick supply of spares in case of emergencies or routine maintenance.
  

In order to satisfy the growing needs of our clients in terms of expert technical knowledge, quick service availability for problems needing immediate attention, for repairs and upkeep of high – tech EOT Cranes we provide crane repair services that includes preventive maintenance and upkeep solutions for the complete assembly. This ensures that Unexpected Breakdowns do not happen.

You can rely on us for timely and accurate service of your valuable investment...your EOT Cranes….

Reliability and Maintenance are a part of our everyday lives.

Keeping this in mind, we take on the responsibility of maintaining the client’s material handling equipment and machinery by way of a Preventive maintenance contract which is aimed at the prevention of breakdowns and failures of equipment before it actually occurs.

We provide our technical expertise and ready manpower for erection, revamping, overhauling and dismantling services for your entire range of heavy engineering material handling and shifting equipment.

We manufacture and service all types of EOT & HOT cranes like: single girder EOT crane, double girder EOT crane, gantry crane, mobile gantry crane, mono rail crane, goliath crane, jib crane and good lifts. So you can rely on us for Turn Key Projects of various dimensions.

You can bank on us for your strategic modification designing and shut down operations since we always maintain an inventory of spare parts and reserved man power for immediate action.

You can also call us anytime for our “24/7 Break down service”
You can be assured of break free functionality of your EOT cranes by opting for our crane repair services and Upkeep solutions

We offer our esteem clients with repairing services of EOT cranes, which include preventive maintenance and annual maintenance services to help our clients.

Preventive Maintenance:

Our valuable preventive maintenance prevents the failure of equipment before it actually occurs, aiming at prevention of failures and breakdowns. Our service is aimed to preserve and enhance equipment reliability by replacing worn components before they fail. Our preventive activities include partial or complete overhauls at specified periods, oil changes, equipment checks, lubrication etc. Our annual maintenance services increase effective system service life as they enable worker to record equipment deterioration enabling them to replace or repair worn parts before they cause any system failure.

Long-term benefits of preventive maintenance include:

• Decreased cost of replacement
• Decreased system downtime
• Improved system reliability
• Better spares inventory management

Annual Maintenance:

Our annual maintenance is the most reliable and convenient service for EOT cranes and other machineries ensuring longevity of aggregates, trouble-free and risk free operations.
 
AMC takes care of free parts fitting on payment of an annual fee offering preventive maintenance.  Our maximum uptime and quick service ensures higher returns and optimum usage.

Benefits of annual maintenance include:

• Assurance of genuine parts (If incase parts supplied by us, which are chargeable separately)
• Free fitting of spares
• We also provide you with any time break down service and assure you that our engineers will be on time to solve the problem
• Reserved man power and availability of spare parts to attend machinery on priority.