Parkar Cranes & Engineers

DSL SYSTEM ALSO KNOWN AS DOWN SHOP LEAD SYSTEM Conductor Power Bar (DSL SYSTEM)Components & Specifications Power supply to the runway electrification shall be by means of bridge conductors and collector system as shown above. The typical components and specifications are as follows: Conductor Bar – Track are super finished and cross section is maintained to achieve required Ampere.The material for track is GI, Al/SS & Copper. Conductors shall be accurately aligned to ensure positive electrical contact between the collector and the conductor. Separate conductors shall be provided for each phase. More than one conductor in a single enclosure will not be permitted. Maximum voltage drop from the building power takeoff point for the track electrification system tothe hoist motor shall not exceed 4 percent, and the equivalent conductance shall not be less Size of bridge conductors shall be proportioned to limit the total voltage drop in the conductors to a maximum of 3 percent of the supply voltage when the current on the individual motors is full load. Power feed – This is an attachment for incoming power and is a fully insulated simple clamp type is easily installed anywhere on the system for incoming power to the conductor rails. The power supply to the runway conductors shall be controlled by a switch or circuit breaker located on a fixed structure, accessible from the floor, and arranged to be locked in the open position. A fused, manual disconnect switch with a lockable handle mounted through the panel door shall be provided and wired into the incoming power circuit. All power for crane shall be supplied through one main visible blade fuse switch located on the crane bridge in an easily accessible position. 3) Collectors - Current collector assembly consists of a spring loaded sliding contact type shoe of hard copper alloy or sintered copper graphite. Shoe shall be mounted in an insulating case of phenolic or urea compound of suitable temperature and insulation quality. Exposed parts of current collectors shall be grounded and of corrosion-resistant material. Current collector assembly shall be designed to operate through gaps, splices, and switches and shall be self-centering. System shall include expansion sections for every 150 meter for systems using galvanized steel conductors and every 175 meter for systems using copper conductors. 4) Hangers- Supports the conductor bar, may also be used as an anchor to direct movement due to expansion and contraction 5) End Cover- Used to close the end of the conductors to cover exposed conductor and avoid accidental contact. 6) Insulating cover –Insulation cover shall be rigid PVC, self extinguishing, with a heat distortion point of 160ºF at 260psi. 7) Connector pins - Used to join the conductor bar sections together . System shall be complete with unit length conductors, insulating conductor covers, insulators, splices and splice covers, end caps, support brackets and fasteners, current collectors, expansion, isolation and power-interrupting sections, disconnect switch, and conduit and wiring to power takeoff point. We manufacture Dsl system ranging from 60A to 1250 A Advantages Of Our Dsl System 1.Dip of the track is maintain properly for movement of Current collector 2.Center Powerfeed is provided to decrease voltage Drop 3.The play between Track & Sleeve is Minimum 4.Current collector is provided spring steel with max dia to avoid breakage We give Test certificate & Warranty Certificate for Dsl system & There erection for Period of 1 Year

Light rail cranes, also known as stand-alone workstation bridge cranes, offer the benefits of being a cost effective, portable system capable of minimal headroom and low deadweight. They are simple to install and extend, and are ideal for workstation applications requiring frequent usage. Light rail cranes are designed to work with any array of lifting equipment such as hoists, vacuum lifters, manipulator arms, balancers, etc. they also offer the options of telescoping and cantilevered bridges for an extended reach in areas such as under mezzanines, into other work stations, or beyond columns. consult with our customer service department to determine the enclosed track light rail crane best suited to your needs. Features: reliable performance sturdy construction long functional life

we are manufacturers of hoists with a wide range of lifting capacity varying from 0.25 tons to 50 tons.They confirm to class II duty as laid down in IS 3938/1983. Hoists confirming to class IV as per IS 3938/1983 can also be supplied. Special Highlights of our hoists are: 1) Special adjusting system. Takes only a few minutes to adjust thus reducing the down time. 2) Trolley is so designed that it is adaptable to wide range on I beam Sizes 3) Built-in safety limit switches control top and bottom position of the hook 4) Hoist motors are designed for 'F' class insulation which is superior to class 'A' 'E' and 'B' types of insulations. Motor :The motor (10) is three phases squirrel cage, conical rotor type working on 440 volts. 50 c/sec. A.C. supply. This motor is specially designed for hoist and crane and is insulated by class ‘F' type of insulation according to B.S. : 2613. The starting and stalling torques of this motor are 220% and 290% of the full load torque. The motor is rated at 40% ED. Brake :The axial movement of the rotor is one of the characteristics of the conical rotor type of motor. This characteristic is taken advantage of in the actuation of the brake. When the motor is started the rotor (11) is axially pulled into the magnetic centre of the stator and the brake is released. As soon as the current is cut off the brake spring (9) presses the brake disc (12) against the cover and the brake is applied. The braking torque is 100% above the motor torque at the rated load.The maintenance and adjustment of the brake us very simple due to system and can be done without removing any part. The brake disc and brake end cover (3) are both made of high grade cast iron and the brake lining is of ‘Ferrodo' type. Gear Box :The gear box (2) is made out of high grade cast iron. The precision spur gears (4) are machined from alloy steel and are fitted with ball/needle roller bearings. The gear box is filled with grease. Rope Drum :The rope drum (5) is rolled welded and precision machined. This rope drum is supported on large diameter roller bearings (6) on both ends and the drive is through internal gears. The ample drum diameter ensures the best possible working condition for the wire rope. Rope Guide :The rope guide (7) is made of high grade cast iron. The rope tightener (8) is built-in in the rope guide itself. This rope guide moves on the drum like a nut and prevents the rope from overriding and loosening. Rope :Generally 6 x 37 construction fibre core, pre-formed type, ungalvanised wire rope is supplied. (Galvanised and steel core wire ropes can also be supplied, if specifically asked for.) Main Housing :All hoist parts are enclosed in the main housing (1) thus forming a better looking integral unit. The main housing like the rope drum is also of rolled and welded construction, equipped with mounting bracket. Limit Switches :Every hoist is provide with built-in limit switches (16) to control the top and bottom position of the hook. Tappets (13 & 15) can be adjusted to any position in between the range provided. These limit switches are actuated by the rope guide. Control:The hoist is controlled by a pendant push button station. Supply to the pendent push button is of 110 volts as per IS specification. Testing :Every hoist unit before dispatch is tested at 125% of the rated load capacity on single fall of rope. Only after all the components pass the rigorous inspection tests, the hoist is approved for dispatch

Our organization has highly qualified and experienced R&D professionals whose assistance has enabled us to deliver highly cost-effective Good Lifts. Designed and manufactured as per clients’ requirements, these equipment are made available in capacities ranging from 500 kg to 5000 kg. These products have sturdy construction and are provided with collapsible gates/shutters. Specifications: SS & MS cages Long functional life Floor & door limit switches for safer operation Electronic panels with indicators (optional)

We are known for providing our customers with highly functional EOT Cranes. Cranes offered by us find widespread application in factories and industries. In this range, we also offer single as well as double girder cranes at most competitive prices. Premium quality components and hi-tech technology utilized to manufacture our cranes help us ensure these cranes’ compliance with international standards. Specifications: Double Girder Cranes: Up to 150 ton capacity Tailor-made end carriages Twin drive (geared brake motors) Sturdy hoisting crabs Conical rotor hoists 100 % fail proof brakes Panels with genuine Siemens switches VVF (Ac) drives for soft start (optional) Remote control (optional) Desired DSL systems Single Girder Cranes: Up to 20 ton capacity Tailor-made end carriages Twin drive (geared brake motors) Sturdy hoisting crabs Under slung conical rotor hoists 100 % fail proof brakes Panels with genuine Siemens switches VVF (Ac) drives for soft start (optional) Remote control operation (optional) Desired DSL systems