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Crane Spares

We are a global supplier of crane spares. Since, we are one of the largest manufacturers of Electric Overhead Traveling (EOT) cranes components, our ability to develop custom products is unparalleled today. We are ready to take up any lifting task as per the need. Under this category, we are offering the following products:

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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.
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We Deal In Gates Hose
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The LAWA Lever Limit Switches are used for prevent over travel or over traverse on power & control circuit upto 500 V.A.C. 50 cycles / second and 40 amps current rating.

LAWA Limit Switch normally remains closed and cuts off power to stop the motor of the crane. The Limit Switch operates when it reaches a predetermined position when the lever is moved over a projecting member fixed on the girder.
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The LAWA Master Controller contact body is made of hight grade melamine suited for heavy duty, non tracking and capable of withstanding heavy arcing. The contacts have maximum current capacity of 40 amps at 500 V.A.C. The contact tips are made from high grade silver cadmium alloy. We also provides Induction Furnace, Induction Furnace Spares, Induction Furnace accessories, Induction Furnace Spares & accessories.
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The lawa resistance boxes are designed to meet requirements for both A.C, & D.C. for speed control and developing starting torque. The specification complies with BSS 5871: 1957. The basic types are stainless steel and punched steel. Resistance boxes are suitable for maximum temperature, rise of 375 °c as stipulated in BSS standards.
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The LAWA Rotary gear type Limit switches are used on control / Power circuit of reversing drives so as to limit their rotation/movement within a predetermined position. The function of the Limit Switch is to stop the mechanism of drive at the extreme forward/reverse positions. The contacts of Lawa Limit Switches are 40 amps rated at 500 volts A.C. The Limit Switch can be provided with 2 NC contacts or 4 NC contacts or (2 NO + 2 NC) contacts as per the requirement.
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The LAWA Flexible Geared Couplings are suitable for over Coming the following type of misalignment:

Parallel Offset: Where axis of connected shafts are parallel but not within the same straight line.

Angular: Axes of shafts intersect at the centre of coupling.

Combined Angular : Offset axes of shafts are neither parallel nor do they
intersect.

Hubs of LAWA Make Couplings are machined from EN-9 Steel forgings to close tolerances for accurate alignments and proper balance.
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We are engaged in manufacturing Electro Hydraulic Thrustor Brakes, These are suitable for 400/440 volts. 3 phase A.C. Supply for a wide range of drum sizes from 100 mm to 600 mm dia. The braking pressure to the shoes is transmitted from the springs by means of an extremely rigid and simple lever / tie rod mechanism.
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Construction And Operation

Thruster brake has a pairot cast iron shoes which are lined up with friction pads. Ihe shoes are hinged on main arm and side ami of the brake. Each of ihem have a hinge pin fitted in the base. They an* connected to each other on top hyalie rod, which is hinged In the main ami and locked to Ihe swivel block in the side arm, by a lock nut.

A crank lever is hinged on the main arm, and ihe other end is fixed In 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, prehension in Ihjs spring dec ides the breaking torque. The thruster is filled on Ihe base by a hinge pin. When the thruster is nol energi/ed, the brake shoes are pressed on Ihe 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. When the thruster motor is energized, ihe thrust provided by the thruster lifts up ihe crank lever which move ihe arms and the shoes away trom the brake drum, there by releasing the braking force.
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Lawa Thrusters is designed for long trouble free service. The motor windings are designed to meet contingencies. The bearings are adequately sized. Routine maintenance schedule includes checking the oil level and topping them if necessary. If oil contamination is detected, drain it out completely and refill with fresh oil. Check and correct the oil leakage if detected.

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Master Controllers are used (or remote operation o( Contactors in equipment such as E.O.T. Cranes A Rolling mills drives. The Controllers are made tn dust proof enclosure In IP-41 degree ol protection, up to6 notches either side with maximum 24 contacts as per desired sequence. Spring return arrangement & Dead man's handle arrangement are also available.

General

  • Master Controllers are ot cam type where in con lads are at tuated by individual cams mounted on operated shad.
  • The Shaft are cut accordingly lo the type of sequent e required by the customers.
  • For thisa blank sequence diagram can be provided by us to be filled in by the customers.

Construction

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. Thecams are made of delrin matenal and fixed on sqviare.

Technical Data:

Body Material Protection Degree Confirming to IS Mounting Position Contact Material Rated Voltage Insulation Thprmal Test Current Cable entries Frequency ol operation No. of contacts No. of steps Optional

  • Sheet Steel (POWDER COATED) •IP-41
  • -13947 (Part-1) 1993
  • Horizontal / Vertical -Silver Cadmium -500V.A.C
  • -10 Amps.
  • 2x200 2x20 standard conduit
  • lOOOswilihing per hour
  • 24 maximum -6-0-6 maximum
  • Spring return / Deadman's Handle arrangement
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Rotary Geared Limit Switches (Model Grls) Introduction

Lawa Rotary Geared Limit Switch GRLS is used to trip supply when Ihe moving loads reach (he extreme end positionsof working zone. Operation, A two (for more) Contact Elements arae operated by respective rotatlngCams.suilableadjiistedonaCam Shaft which rotates with fixed speed ratio of the drive motor shaft. Ihe cams can be suitably positioned so that they trip motor supply and stop the motion at the required point of travel.

Application

Rotary Geared limit Switches are suitable lor use on reversing drives such as Hoists, Winches, Rolling Mills and various other mechanisms used in Steel Plants such asCoke Oven, Feeding machinery etc.
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Lever, Counter Weight Operated Limit Switches

Introduction

Lawa Lever < and weight operated ) type Limit Switch LLS / CWLS operates the control change-over Contacts of motor ot an moving equipment when a Cam moving with loads actuates the Lever ol limit switch. This turns the cams tin a square shall and operates I he NO / NC contact elements.

Operation

Two or more Contact Elements are operated by respective rotating Cams, which are suitably fixed on a square Cam Shaft turned by a lever or weight. The contacts operate at 14 from central neutral position.

Design

The Sheet Steel hody, lever and Cover of the Limit Switch are finished by powder roating treatment. The Cam Shaft is mounted in the housing on moulded Nylon bushes ( bearing) and are fixed through the front & rear walls.

Technical Data:

  • Body material Degree ot protection Mounting position Cable entries No. of contact Wire connection Rated voltage Tliermal test current
  • Powder coated sheet IP-41
  • Floor mounting Twin. 3/4' BS conduit 213 /or 4 Silver-cadmimum 500 Vac 10 A
  • Operating Executions:
  • The operating mechanism can be offered in two executions:
  • I. Roller Operating A lever :
  • These Limit Switches are used tor E.O.T. Cranes. Wagon Shunting devices. Elevators. Travel mechanism or such linearly moving mechanisms to prevent over-travel. The position ol operating lever is in up / down, and can be changed in steps ot 90 at site.
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The Lawa Flexible Geared Couplings are suitable tor overcoming the following type of misalignments. Parallel Offset: Where axis of connected shafts are parallel but not within the same straight line. Angular; Axes of shafts intersect at the center of coupling. Combined Angular: Offset axes of shafts are neither parallel nor do they intersect.

Hulis of lawa make Couplings are machined fromEN-9 Steel forgings to close tolerances for accurate alignments and proper balance.
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Lawatherm Is known tor providing rnosi appropriate magnetic material handling insulation spare solutions to various industry segments. We specialize In magnet systems (or the scrap, steel and railroad industries. What has made us successful Is our service to the customer and the well thought out ilesign and quality o( our systems. You demand maximum performance, durability and long li(e. We'll keep you up and running! Whether you are new to magnet systems or a long time user, Lawa is here for youl Experience counts and we've got it! Take a look at what we have to offer and give usa call. We'll set yuu up with what's ri^hl (or you. We are your magnelic material handlingspecialists!
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Lawa hoist trolleys provide the connection between the lifting device and the bridge. The trolley* are designed for effortless movement along the bridge.

Ihe stamped body fits most rigid hook or eye lifting device. Festoon clamps anchor the festooning at the start of the runway and bndge. Festoon trolley is used to support flat cable or air hose along the runaway or bridge. The tto lleys have four wheels and a pivoting festoon saddle support. They are ideally suited for long runways orwith round cable or air hose..
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Lawa Resistance boxes are used lo add resistance in an electric motor circuit for modifying ihe performance characteristic of Slip Ring Electric Motors ol EOT Cranes. Rubber Mills, Steel Rolling Mills, Cement Plants, Power Plants, Conveyors, Coke Oven. Blowers etc. fur speed control and developing slarting turquewith low slartingcurrenls. They are also used as Dynamic Breaking Resistor forV.V.V.F.A.C. Drives, electric loading of AC Altimeters, DC Generators and Dynamometers. Resistors are designed to meet requirements of both A.C. & D.C. Application.

Type Of Resistors

The basic type of resistors are:

  • Stainless steel Wire Grid Resistors
  • Stainless Steel Punched Grid Resistors
  • Fecral Punched Grid Registers

Current Ratings

Resistors are manufactured for current ratings from 10 to 800 Amps. Continuous duty resistors nf higher ratings .ire made by using two-or more parallel paths. Resistors with shin time rating up to 3(H)0 Amps (or even higher), for neutral earthing are pmslble for system voltage up lo and above

Stainless Steel Wire Grid Resistors

These resistors consist ol stainless steel wires or strip in form of grids. The current rating generally range from 7 Amps to 100 Amps. For continuous duty applications with single or multiple paths.

Stainless Steel Grid Resistors

Punched Meet grid resistors consist of grid punched (rum corrosion resisting nickel chromium alloy sheet steels. The punched steel grids are completely immune to shock & vibration. They function reliably under the worst operating conditions and are particulary suited for steel mill duty. These resistors are available in wide range of current ratings from 8 Amps to 800 Amps for continuous duty with single or multiple parallel paths.
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Lawa Resistance boxes are used lo add resistance in an electric motor circuit for modifying ihe performance characteristic of Slip Ring Electric Motors ol EOT Cranes. Rubber Mills, Steel Rolling Mills, Cement Plants, Power Plants, Conveyors, Coke Oven. Blowers etc. fur speed control and developing slarting turquewith low slartingcurrenls. They are also used as Dynamic Breaking Resistor forV.V.V.F.A.C. Drives, electric loading of AC Altimeters, DC Generators and Dynamometers. Resistors are designed to meet requirements of both A.C. & D.C. Application.

Type Of Resistors

The basic type of resistors are:

  • Stainless steel Wire Grid Resistors
  • Stainless Steel Punched Grid Resistors
  • Fecral Punched Grid Registers

Current Ratings

Resistors are manufactured for current ratings from 10 to 800 Amps. Continuous duty resistors nf higher ratings .ire made by using two-or more parallel paths. Resistors with shin time rating up to 3(H)0 Amps (or even higher), for neutral earthing are pmslble for system voltage up lo and above

Stainless Steel Wire Grid Resistors

These resistors consist ol stainless steel wires or strip in form of grids. The current rating generally range from 7 Amps to 100 Amps. For continuous duty applications with single or multiple paths.

Stainless Steel Grid Resistors

Punched Meet grid resistors consist of grid punched (rum corrosion resisting nickel chromium alloy sheet steels. The punched steel grids are completely immune to shock & vibration. They function reliably under the worst operating conditions and are particulary suited for steel mill duty. These resistors are available in wide range of current ratings from 8 Amps to 800 Amps for continuous duty with single or multiple parallel paths.
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Lawa Resistance boxes are used lo add resistance in an electric motor circuit for modifying ihe performance characteristic of Slip Ring Electric Motors ol EOT Cranes. Rubber Mills, Steel Rolling Mills, Cement Plants, Power Plants, Conveyors, Coke Oven. Blowers etc. fur speed control and developing slarting turquewith low slartingcurrenls. They are also used as Dynamic Breaking Resistor forV.V.V.F.A.C. Drives, electric loading of AC Altimeters, DC Generators and Dynamometers. Resistors are designed to meet requirements of both A.C. & D.C. Application.

Type Of Resistors

The basic type of resistors are:

  • Stainless steel Wire Grid Resistors
  • Stainless Steel Punched Grid Resistors
  • Fecral Punched Grid Registers

Current Ratings

Resistors are manufactured for current ratings from 10 to 800 Amps. Continuous duty resistors nf higher ratings .ire made by using two-or more parallel paths. Resistors with shin time rating up to 3(H)0 Amps (or even higher), for neutral earthing are pmslble for system voltage up lo and above

Stainless Steel Wire Grid Resistors

These resistors consist ol stainless steel wires or strip in form of grids. The current rating generally range from 7 Amps to 100 Amps. For continuous duty applications with single or multiple paths.

Stainless Steel Grid Resistors

Punched Meet grid resistors consist of grid punched ( corrosion resisting nickel chromium alloy sheet steels. The punched steel grids are completely immune to shock & vibration. They function reliably under the worst operating conditions and are particulary suited for steel mill duty. These resistors are available in wide range of current ratings from 8 Amps to 800 Amps for continuous duty with single or multiple parallel paths.
Yes! I am Interested
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Lawa Resistance boxes are used lo add resistance in an electric motor circuit for modifying ihe performance characteristic of Slip Ring Electric Motors ol EOT Cranes. Rubber Mills, Steel Rolling Mills, Cement Plants, Power Plants, Conveyors, Coke Oven. Blowers etc. fur speed control and developing slarting turquewith low slartingcurrenls. They are also used as Dynamic Breaking Resistor forV.V.V.F.A.C. Drives, electric loading of AC Altimeters, DC Generators and Dynamometers. Resistors are designed to meet requirements of both A.C. & D.C. Application.

Type Of Resistors

The basic type of resistors are:

  • Stainless steel Wire Grid Resistors
  • Stainless Steel Punched Grid Resistors
  • Fecral Punched Grid Registers

Current Ratings

Resistors are manufactured for current ratings from 10 to 800 Amps. Continuous duty resistors nf higher ratings .ire made by using two-or more parallel paths. Resistors with shin time rating up to 3(H)0 Amps (or even higher), for neutral earthing are pmslble for system voltage up lo and above

Stainless Steel Wire Grid Resistors

These resistors consist ol stainless steel wires or strip in form of grids. The current rating generally range from 7 Amps to 100 Amps. For continuous duty applications with single or multiple paths.

Stainless Steel Grid Resistors

Punched Meet grid resistors consist of grid punched ( corrosion resisting nickel chromium alloy sheet steels. The punched steel grids are completely immune to shock & vibration. They function reliably under the worst operating conditions and are particulary suited for steel mill duty. These resistors are available in wide range of current ratings from 8 Amps to 800 Amps for continuous duty with single or multiple parallel paths.
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Lawatherm Furnace Private Limited

Naveen Chawla(CEO)
No. B-4/77, Sector XI, Rohini
New Delhi - 110085
Delhi, India
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