Sharma Presses

Parkash Presses with solid body plates have higher rigidity reducing deflection of frame thereby increasing the die life. Use of solid body plates instead of hollow box type frame eliminates excessive welding stresses reducing vibration making it suitable to work in both higher & lower gauge. The bed is fitted in groove in a seat and welded which is only possible in solid plates thus eliminating chances of welding crack on heavy loads.

Product Description:
Parkash Presses has eight point square gibbing slide arrangements ensuring accurate parallelism and perpendicular movement to produce quality and accurate drawn component. Non-ferrous adjustable liners are provided to ensure closer gib clearance and thereby precision.

Parkash Presses Frames are machined on Elgamill with all the slide guideway and Bed Machining after fabrication in one single setting. The bed and guideways are machined with geometrical accuracies conforming to ISI 4593-1968 i.e., 0.1mm per meter.

Design Features:

Toggles operation the blank holding and relieve the crankshaft of the blank holding strain which is then carried directly to the press frame. Thus, nearly all the crankshaft power comes to bear on the drawing operation. The Toggle linkage provides 90 degree of blankholder dwell during which the pressure on the blank is steady. Four independent adjustments, one at each corner of the blankholder permits individual corner adjustment of blankholder pressure. No more broken toggle shafts. The crankshaft & toggle shaft are one piece solid made from tested forged steel. The toggle shaft’s shape and side is designed for heavier load and longer life as compared to conventional toggle shafts with more maintenance & breakage due to welding or key ways. Parkash Presses are with multiple clutch plates system both in mechanical & pneumatic clutch with wear adjustment for taking heavy torque and maintenance free service for a longer period Parkash Presses side slide and connecting rod are steel casted grade 23-45, resistant to breaking and bending at high pressure thus maintaining the press life. The conventional C.I. Casting slides cracks at higher load whereas the fabricated or M.S. profile slide having low carbon tends to bend at high pressure, misaligning the whole press.

All pins, shafts, screws are made from alloy carbon steel & hardened, hard chromed, grinded within close tolerances for 100% interchangeability. From phosphor bronze to gunmetal to aluminium bronze or even oil less bushes and guides, when it comes to metallurgy Parkash presses are highly durable.

Advantages over hydraulic double actions:

• High on production
• Low on maintenance
• Less power consumption
• Longer tool life
• Consistence performance in all weather conditions (since no oil heating). 

we, "Sharma Presses", have emerged as one of the instrumental organizations involved in manufacturing and exporting of Blanking Line Machine, Power Press Machine, Impact Extrusion Press, etc. The extensive range of products offered by us is inclusive of Hydraulic Shearing Machine, Hydraulic Press Brake and Power Press. These shears are generally utilized by giant industries in the cutting process of big and rough metal sheets. Whereas power presses are used in a variety of applications and press works. All the machines offered by us are fabricated utilizing some of the best category raw materials bought from vendors in the market. We manufacture these Shears & Pressure Break and Power Press from good quality cast iron. Our team of professionals maintains high quality standards right from sourcing of products till delivery. Our efficient professionals ensure that our range of products meets the global quality standards. We test our product range on various quality parameters to ensure high performance at users end.

PRESS:

Robust construction H-type ring frame press for utmost rigidity and accuracy. A scotch yoke mechanism slide with three long guide & slide length of 1400mm which offers extreme accuracy for your tools resulting in a longer tool life.

Moreover, all gears , slides , crank , bushes & bearing run in oil bath for optimum long life & maintenance free operations.

FEEDER:

Driven by computerised numerically controlled(CNC) panel and servos from Panasonic, our feeders deliver the precise movement of the coil at a very high speed with an accuracy of up to 0.1mm and linear speed of up to 50m/min.

Heavy linear motion guideways and accurate ball screws are used for fast and long lasting performance.

A combination of two different materials for the feeding rolls is used to have zero frictional loss and scratchless blanks.

Also the self centring coil guiding system for time saving.

The very user friendly software provided for the blanking line adjusts itself for the blank size and coil width input by the user to give minimum optimum scrap wastage.

SLITTING LINE:

For those who require maximum coil recovery for their blanking solutions, we have introduced on-line slitting. After decoiling, coil gets slitted and is fed to the press for blanking operation. This way one can do the slitting operation as well as blanking operation in a single line for maximum coil recovery of up to 92%.

SCRAP HANDLING:

Scrap chopper mounted at the frame of the press shears the scrap in a neat manner at a speed of up to 65 strokes/minute.

Not just for scrap, the chopper can also be used as a cut-to-length. The chopper itself can be used as a shearing machine for the coil width of up to 1600mm.

Scrap coiler can also be used as rewinding of the scrap after the blanking operation with speed of the press.

COIL HANDLING:

Heavy duty decoilers are used in different sizes depending upon the customer’s requirement i.e with tonnage capacities varying from 3 to 10 tons.

Features like coil cart and hydraulic coil locking at the touch of a button saves time.

Frame

The frame of PARKASH Screw Press consist of four steel casted frames, held together by four
hydraulicaly pretensioned tie rods, and thus ensuring longevity of the frame, and forming of more accurate parts, and reducing the overall weight and size of the press.

Screw is made of high-alloy forged, quenched and tempered
steel which provides longer screw life. The screw bearing in the
machine frame is a heavy-duty spherical flanged bearing.

Screw Nut

Screw nut is of special wear resistance bronze alloy fixed in the ram.
Thread geometry in the screw drive with optimized tooth profile and four
start threads, has already proved to be durable and tough in the past. 

Motors and Driving System of the Press

The drive comes from two heavy-duty high torque motors linked via a bull gear to the external diameter of the flywheel. The press force is limited by a slipping clutch provided in the flywheel.

Foundation

Optional spring damping foundation pads under the mild steel bed plate ensures low vibration during press operation.

Lubrication.

Screw, thrust bearing and guides are continuously lubricated by re-circulating oil
lubrication system.

Safety

PARKASH Servo Screw Press is equipped with digital
tonnage monitor in which the force exerted in forming process is measured and recorded by strain gauges. When the maximum permissible force is exceeded, the
system displays a warning message and cycle stops, to prevent possible damage to the press. Photoelectric sensors mounted on both columns front and back.

Ram and Guiding System

Ram is of high-quality cast steel and is guided in four guides at
45 degree with continuous lubrication, so that it is able to
maintain constant clearance in spite of heat expansion. Bronze
and steel are used as guide pairs.

 

Advantages 

• Increased production capacity due to superior reliability and improved performance.
• Large working capacity/safeguarding by means of overload protection.
• Exact adjustment and maximum repeat accuracy of the energy output.
• Wide range of stroke control options.
• Optimized, exact ram guidance.
• Optimum controllability of the forging process
• Reduced energy consumption and noise emission.
• Long lifetime and operational safety due to robust design.
• The spring stiffness of the frame is precisely adjusted by pre-tensioned tie rods.
• High press stroke rate even at low forming energies.
• Low maintenance and service costs.

  Main Parameters	(Units)	PSP 800	PSP 1250	PSP 1600	PSP 2500
  Nominal Force	kN	8000	12500	16000	25000
  Permissible Force	kN	12500	16000	25000	32000
  Ram Stroke	mm	500	550	650	700
  Shut Height	mm	600	700	800	800
  Bed	mm	800 x 800	1000 x 1000	1250 x 1250	1500 x 1500
  Screw Diameter	mm	Ø300	Ø350	Ø400	Ø450
  Bolster		600 × 600	800 × 800	1000 × 1000	1250 × 1250
  Overall Dimension	mm	H- 5000 W-1800 D- 1500	6000 2200 1800	6500 2450 2000	7500 3500 3000
  Weight	ton	70	100	130	180

Being quality-centric firm, we are engaged in presenting a high-class range of Cutting Trimming And Beading Machine.

Product Description:
Experience, which exalts our great flexibility in providing trimming solutions, as well as a technological service focussed on seeking the most useful result for the customer in terms of greater productivity and cost-saving production.

Consequently, trimming beading machines are designed to meet the production programs of each individual customer, both in terms of hourly output and quality consistency, and therefore contribute to the manufacture of specialised economical parts and components.

Cutting, trimming and beading of utensils could be done in a single equipment and in one time loading.
Equipments can be designed to do multiple operations which are required postforming.
A combination of cutting, trimming, curling and pressing can be incorporated in single equipment. This saves on manpower costs, space and material handling.