Star Enterprises
Star Enterprises
Diamond Building, Mumbai, Maharashtra
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Overhead Crane Spares

We are engaged in manufacturing and supplying a wide range of overhead crane spares for our clients based globally. Apart from this, we are also offering customized solutions for our clients as per their specifications in given time.

Master Controller

Master Controller
  • Master Controller
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Approx. Price: Rs 3,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
TypeManual
Enclosure IP-44/IP-54
Body Material M.S sheet
Mounting Position Horizontal/Vertical
Rated Voltage 500 V
Cable entry 2x 20 / 2x26 Conduit
Thermal Test Current 10 amp
Frequency of operation 1000 switching per hour
No. of contacts 24 maximum
No.of step 6-0-6 maximum
Contact Material Silver Cadmium

Master controllers are used for operation of contractor’s equipment controlling E.O.T. Cranes Rolling mills drives.

Assembly and Function


Master controllers are of cam type where in contacts are actuated by individual cams mounted on operated shaft. Master controller is housed in enclosure and provided with an easily removable cover with ample area for maintenance.

The cam shaft is mounted on bearing bushes on walls of housing. The cams are made of derlin material and fixed on square.

 

Features:
  • Wide electrical clearance
  • Long life
  • Simple in operation
  • Easy in installation
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S.S Punch Grid Resistance Box

S.S Punch Grid Resistance Box
  • S.S Punch Grid Resistance Box
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Approx. Price: Rs 15,000 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Body Material G.I. Sheet
Enclosure IP-44
Mounting Position Floor
Cable entry Bottom
Current rating 7-800 amps
Cooling Air cooled
Temperature rise 2250 degree C / 2500 degree C / 3750 degreeC

We are the leading manufacturers of S.S. Punch Grid Resistance Box.


Features:

  • Economical
  • Less Weight
  • Spares Easily Available
  • Easy For Maintenance
  • Special Anti-vibration method adopted


Assembly and Functions:

Rolex punched Steel resistance boxes Consist of Grids Punched from Nickel Chromium Steel Alloy Sheet.

The series connection between adjacent grids is by means of copper jumpers. The resistors, after overloads of moderate duration, become red hot but no damage is caused and retains their shape after overload disappears.

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Electro Hydraulic Thruster

Electro Hydraulic Thruster
  • Electro Hydraulic Thruster
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Approx. Price: Rs 8,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Phases3 Phase
Voltage415 Volts
Power supply50 H
SurfaceCorrosion Resistant
Power SourceElectric

In addition to wide range of applications in mechanical engineering applications, the thruster operated drum brakes are mainly used in material lifting and handling equipment, mainly because their 'Fial-to-safety' designs ensure safety to men and machines in the event of over failure.

With the advancement in electric drives and electronics, the drives have pushed the mechanical systems to high level of operations and demanding safer and reliable braking loads moving at much higher speeds than earlier.

Continuous developments in product improvisation and assured quality checks, the thrusters offer compact, reliable yet economical solutions to most of the industrial applications..


Assembly and Function

 The two main sub-assemblies of the hydraulic thruster, the electric motor and the hydraulic unit are co-axially assembled form the working unit.

In the switched off state (de-energised) the piston is at its lowest position due to external load (as brake spring of the drum brake), and the brake is applied.

When energized, the electric motor drives the pump and delivers working fluid under the piston axially in the guided path, and delivers thrust or force required to operate the attached devise (like thruster brake) via the piston rod and the eye-lug attached to it.

The working stroke can be sleeplessly controlled by external load. The thruster is designed for long trouble free service.

The motor winding are designed to meet contingencies. The bearings are adequately sized.

 

Features:

  • Gentle Application and release of brake without jerks and shocks
  • Compact unit
  • Constant magnitude
  • Self aligned movement
  • Low power consumption
  • Minimum maintenance
  • Easy mounting and dismounting
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Brake Drum

Brake Drum
  • Brake Drum
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Approx. Price: Rs 2,000 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
PackingPallet
MaterialHT250, HT250
Current rating7-800 amps
EnclosureIP-44
Dia215 mm

Brakes are applied on brake drum. The shoes of the brakes are applied on brake drum in normal condition. When the motion is to be obtained the brake shoe are released and the brake drum is free to rotate.

 

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Electro Magnetic Brake

Electro Magnetic Brake
  • Electro Magnetic Brake
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Approx. Price: Rs 17,000 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Drum Diameter (mm)100-380
Braking Torque (KG.M)1.84-58.60
Length370-850 m
Width (Maximum)155-190 mm
Height (Maximum)275-645 mm

For infallible operation of machinery, modern methods are necessary, any machine which requires its motion to be controlled, whether it is a lifting Crane, Hoist, Winch or Mining Haulage today employs an Electro Magnetic Brake, enabling the operator not only to control the motion but also to hold the load at any desired point without danger of falling, merely by release of the starting handle. Electro magnetic Brake is adequate equipment for safer operations of machinery.

Electro magnetic Brakes are used when a load must be stopped rapidly to prevent it from rotating. Electro Magnetic Brakes find its use in Paper Mills, Drives of certain textile machines, Sugar Mill Machinery, Rubber Mixing Mills. ..



Assembly and Function

The Shoes are of cast iron and other components are of fabricated steel. The lever is hinged on the main arm, which is connected to the side arm through a tie rod, and is stressed by a pre-loaded compression spring. The compression of the spring can be adjusted to set the braking torque to desired value. The brake liner of selected quality material is riveted to the shoes by aluminum rivets. A.C. solenoid with laminated magnetic sheet steel houses a copper magnetizing coil which is impregnated with Class F materials.

The plunger which is connected to the lever, is drawn in to the coil, when it is energized with AC source. This loads the spring and releases the brake shoes from the brake drum.

When the supply is cut off, the plunger is pulled out of the coil, and spring force clamps the brake shoes on the brake drum and the brake is applied.

 

Features:
  • Compact design
  • Fail safe
  • Reliable in operation
  • Clean work environment
  • Braking torque can be easily adjusted
  • Requires less maintenance
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Electro Hydraulic Thruster Brake

Electro Hydraulic Thruster Brake
  • Electro Hydraulic Thruster Brake
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Approx. Price: Rs 12,000 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
SurfaceCorrosion resistance
Body MaterialM.S sheet/Aluminium casting
Enclosure IP-44/IP-54
Mounting PositionVertical

Thruster brake is a device used to retard the speed of moving machinery and to stop it accurately to the desired position. The braking force is applied to the brake shoes by a pre-stressed comprising spring.

The shoes press on the rotating brake drum retarding its speed and finally stop it. The releasing of the brake drum and compressing of the spring is done by thruster.


Assembly and Function

A thruster shoe brake has a pair of cast iron shoes which are lined up with friction pads.

The shoes are hinged on main arm and side arm of the brake, each of them have a hinge pin fitted in the base.

They are connected to each other on top by a tie rod, which is hinged in the main arm and locked to the swivel block in the side arm, by a lock nut.

A crank lever is hinged on the main arm and the other end is fixed to the top clevis of the thruster by a hinge pin. A brake spring is fixed on the main arm and is pre-loaded by a locknut on the lever.

The pre-tension in this spring decides the braking torque. The thruster is fitted on the base by a hinge pin. When the thruster is not energized, the brake shoes are pressed on the brake drum fitted on the drive motor shaft and hold it under the effect of braking force provided by the spring.

In such condition, the brake is applied and the drum cannot rotate. As the piston travels upwards the angle lever turns, pushes the brake rod and compresses the brake spring. Simultaneously, the brake lever on the other side of the wheel (Brake Drum) is retracted.

When the first lever reaches the stop on the brake base member the brake lever at the thruster begins to move, releasing the brake drum.


Feature

  • Rugged design
  • Consistent braking performance
  • Robust in construction
  • Long life
  • Trouble free maintenance
  • Easy in service
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Geared Coupling

Geared Coupling
  • Geared Coupling
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Approx. Price: Rs 3,000 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
MaterialSteel
ColourGolden
SurfacePolished
Diameter56.5 inches

Geared couplings are used to connect two different shafts or offset shafts. Geared couplings are made of EN material to absorb shocks. Geared coupling consists of gear which transmit the motion smoothly by absorbing shocks.

Technical Specification

Model

Drum Dia

100

120 mm

101

170 mm

102

185 mm

103

220 mm

104

250 mm

105

290 mm

106

320 mm

 

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Rotary Geared Limit Switch

Rotary Geared Limit Switch
  • Rotary Geared Limit Switch
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Approx. Price: Rs 3,500 / PieceGet Latest Price

Product Details:

Minimum Order Quantity1 Piece
Application EOT Crane

Introduction

Rotary geared limit switch is used to trip motor supply when the moving loads reach the extreme end positions of working zone. Rotary geared limit switches are suitable for use on reversing drives such as Hoists, winches, rolling mills and various other mechanisms used in steel plants such as coke oven, feeding machinery etc.

Assembly and Function

 

A two(or more) contact elements are operated by respective rotating cams, suitably adjusted on a cam shaft which rotates with fixed speed ratio of the drive motor shaft. The cams can be steplessly positioned so that they trip motor supply and stop the motion at the set point of travel.

The RGLS limit switches with IP-44 / IP-54 degree of protection are available in desired NO/NC contacts combinations and specified gear ratios

 

Body Material

C.I casting

Enclosure

IP-44/IP-54

Mounting Position

Vertical

Cable entry

¾” Conduit

Gear ratios

48:1, 60:1, 96:1

Drive

Worm drive

Rated Voltage

500 V

Thermal Test Current

10 Amp

No. of contacts

2 NO or 2 NC (Adjustable cam setting)

Contact Material

Silver Cadmium

 

Features:

  • Sturdy design

  • Long life

  • Requires less maintenance

  • Trouble free service

 

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Reach Us
Ashish Shah (Partner)
Office No. 18, 1st Floor, Diamond Building Pathakwadi Lane, Lohar Chawl
Mumbai- 400002, Maharashtra, India



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