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Crane Project Case Study

Crane Project Case Study

30 Ton RTG Crane for Tunnel Construction Segment Storage Yard

Tunnel Segment, Concrete Segment

rubber tyred double girder gantry crane for tunnel segment storage yard

rubber tyred double girder gantry crane for tunnel segment storage yard

Overview of 30 ton gantry crane for tunnel concrete segment storage yard

  • Gantry Crane Type: Rubber Tyred Gantry Crane, 30 Tons, Span 20M, Height 10M
  • Main Crane Components: General configuration + NR hoist trolley. With 120KW diesel generator. Add obstruction lights at both ends of the main beam. All gantry crane marking,lettering, labels and remote control identification in English.
  • Project Location: Airport Avenue in the East Coast Constituency of the Republic of Singapore
  • Customer: Singapore Changi Airport
  • Applications: The rtg gantry crane will be used for handling Cement prefabricated component in segment storage yard in the tunnel construction project
  • Industry: Tunnel Construction, Industrial Manufacturing and Maintenance
  • Dimensions and weight of the rtg crane: Check Rubber Tyred Double Girder Girder Gantry Crane 30 Ton Weight & Dimensions Tables.
  • Package: Main frame: Plastic, Spare parts: Plywood Box
  • Delivery: 75 working days after we receive 50% deposit.
  • Payment: 50% T/T deposit before production, 50% T/T before dispatch from factory.
  • Warranty: 12 months from date of commissioning or 18 months after dispatch from factory, whichever comes earlier.

Technical drawing and specifications of 30 ton gantry cranes

30 ton double girder gantry crane with rubber tyred design 30 ton drawing

Technical specifications of 30 ton gantry cranes

Item

Rubber-tyred Double Girder Gantry Crane

Lifting capacity

t

30

Lifting height

m

10

Span

20

Speed

Crane traveling speed

m/min

2.0~20 (inverter control)

Trolley travelling
speed

2.0~20 (inverter control)

Lifting speed

0.5/3.3 (dual speed)

Working class

/

FEM2M (ISO M5)

Power supply

V/Hz/P

400V/50HZ/3P

Crane traveling power

KW

11

Trolley travelling power

4.0

Lifting power

5.0/20

Total power

35

Total design weight

Ton

56.4

Ambient temperature

/

-20C ~ +40C

Anti-collision system

/

Included

Phase protection relays

/

Included

Limit switch

/

Included

Voltage Low Protect device

/

Included

Emergency stop action

/

Included

Ground fault protection

/

Included

Short-circuit protection

/

Included

Over-heating protection

/

Included

Power-off protection

/

Included

Over-current protection

/

Included

Overload limiter

/

Included

Countryof Origin

 

China

Configuration details of 30 ton double girder gantry cranes

 

Main structure

main girder

Main girder

Q235B carbon structural steel

 

Main beams with maintenance platform at one side, ground beams and legs Strong and elegant.

Three-layer painting.

ground beam

Ground

beams

Legs

Legs

Lifting mechanism

	 Low  headroom  hoist

Low

headroom

hoist

Inverter traveling speed and dual lifting speed

Reducer, drum, motors

Insulation grade F class

Protection class IP54

Lifting  motor

Lifting

motor

Three-in-one motor

Maintenance free. Insulation grade F. Protection class IP54.

Electromagnetic disc type brake system

Hoist  travelling  motor

Hoist

travelling

motor

Drum

Drum

Self-produced. Drums made of high- quality steel processed by CNC machine.

Wire rope

Wire rope

Rope structure 6 × 19SW, fiber core.

Hook

Hook

Rotating forged type with safety latch

Bearing

Bearing

High rotation accuracy and durability

Crane travelling mechanism

	 Ground  beams

Ground

beams

Provides horizontally travelling for the crane, with quality wheels, powerful 3-in-one motors, travelling limiter and buffers

Crane  travelling  motor

Crane

travelling

motor

Special designed Squirrel-cage motor Maintenance free. Insulation grade F. Protection class IP54.

Electromagnetic disc type brake system

Protection system

Overload limiter

Overload limiter

Under overload condition, cut off the power of the crane, the screen can show the weight of lifting items.

Rotary  Limit  switch

Rotary

Limit

switch

For hoist travelling mechanism, protect the crane before it crashes the object.

	 Lifting  limiter

Lifting

limiter

For lifting protection, prevent the hook from knocking the hoist

	 Buffer

Buffer

Ployurethane material. Used for

anti-collision

Other protection

Other protection

Phase-break protection, no-voltage protection,

over-current protection

Electric parts and other parts

Electric  Cabinet

Electric

Cabinet

CHINT brand, Chinese best brand, Main contactors are Schneider

Frequency converter

Frequency converter

Inovance brand, Chinese famous brand. Control the lifting and travelling motor, change the motor speed.

Joystick  remote  control

Joystick

remote

control

Joystick wireless radio frequency control Suitable for heavy load crane

Festoon  cable

Festoon

cable

C-track or I beam with festoon cable to supply power for the trolley and hoist, safe, reliable and flexible.

Rubber tyre

Rubber tyre

Rubber tyres

	 Diesel  generator  set

Diesel

generator

set

120KW diesel generator set

Mute noise reduction

Product Certifications

Our products have passed CE (ECM) and ISO Certifications, and you can also specify a third-party agency for quality testing. Fees of third-party testing are not included in this offer.

Technical Standards

Design and Construction Rules

  • All the standards required for the cranes are the FEM standard, DIN standard and Chinese National standard.
Europe Main National Standards
  • 89/392/EEC standard (93/68/EEC)
  • 91/368/EEC standard
  • 73/23/CEE standard
  • "EMC" standard 89/336/EEC
  • EN 60204- 1
  • EN 292 mechanical safety
  • ISO 2141
  • ISO 2766

International Standards
 
  • June 9, 1993 / Sept. 22, 1993 notice
  • July 29, 1992, 92-765, 92-766, 92-767 notice
  • DIN 5684
  • DIN 15400; DIN 15401
  • NFE 26-010
  • NFE 26-030


Technical Standards
  • FEM 9.511 Mechanical group
  • FEM 9.661 Hoisting and traveling components size and quality standard
  • FEM 9.671 Wire rope quality standard
  • FEM 9.681 Travel motor choice
  • FEM 9.682 Hoisting motor choice
  • FEM 9.755 Electric hoisting equipment
  • FEM 9.811 Electric crane standard
  • FEM 9.901 Hoisting components design reference
  • IEC 34- 1 Traveling and allocation performance
  • IEC 34-5 Protection grade standard
  • IEC 947-5- 1 Low voltage equipment

China Main National Standards
  • Design rules for cranes
  • Safety rules for lifting appliances
  • Common crane technical condition
  • Crane-Overhead travelling crane and portal bridge crane
  • tolerances for manufacture and tracks laying
  • GB/T 3811-2008
  • GB 6067-2010
  • GB 7592-87
  • GB/T 10183-2010


Crane-test code and procedures
  • General Bridge crane
  • Portal Crane
  • Crane & Lift Equipment Technical Performance and Acceptance Condition Electrical installation and acceptation standard
  • Safety of Machinery - Electrical Equipment of Machines
  • Part: 32 Requirements for hoisting machines
  • Electrical installation and acceptance standard
  • GB/T 5905-2011
  • GB/T 14405-2011
  • GB/T 14406-2011
  • GB/T 17908- 1999
  • GBJ 232-82
  • GB 5226.2-2002
  • GB 50256-96

Productions Assembly, Testing & Feedback of 30 Ton RTG cranes

General Installation Procedures of 30 Ton RTG Crane for Tunnel Construction Projects

For efficient 30 ton double girder gantry crane assembly at tunnel segment yard, the main steps are provided to guide the crane installation. In The following, the main steps are provided for your reference. If you have any need or cusotmized 30 ton crane, please feel free to contact us.

  • Locate the positioning of the four rubber tires wheels of rtg crane on the ground in designated worksite by using dial ruler.
  • Locate the ground anchor point based on the position of the outrigger (the ground anchor is the support point of the outrigger wind rope, and other alternative is allowed according to the site conditions).
  • Use the truck crane to place the ground beam to the designated position.
  • Use the truck crane and wrenches to assemble supporting leg legs onto the ground beams.
  • Use wire rope, rope buckle and chain block to fix crane legs.
  • Use truck crane, welding machine, aerial work truck and oxyacetylene flame to assemble main girders.
  • Use truck crane to assemble hoist trolley.
  • Use wrenches, screw, oxyacetylene flame and truck crane to fix and install electric components.
  • Use wrenches and screw to connect electrical wires.

Useful reports and information on segment yard gantry crane 30 ton

Design drawing of rubber tyred gantry crane 30-ton.pdf
Design-drawing-of-rubber-tyred-gantry-crane-30-ton.pdf (332.05 KB)
Structural calculations 30 ton rubber tire gantry crane.pdf
Structural-calculations-30-ton-rubber-tire-gantry-crane.pdf (770.92 KB)
Weight dimensions of 30 ton rtg gantry crane.pdf
Weight-dimensions-of-30-ton-rtg-gantry-crane.pdf (165.99 KB)
30 ton double girder gantry crane installation.pdf
30-ton-double-girder-gantry-crane-installation.pdf (142.86 KB)

Note: Since for all the material and information provided is for your reference. If you need a 30 ton gantry cranes, please feel free to contact us. And all the technical data and crane services will be confirmed in the specific contract. Free consultation is provided. Contact us now to check what we can do to save your cost.



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