SHMG has thirty years history of producing hydraulic extrusion press. The 2YJQ12500 extrusion press designed and manufactured by our company is awarded a silver medal of the country.

 

     Our company is a leading factory which is decided by department of machinery and electricity to produce the extrusion press of light alloy. To improve technical level of extrusion press and to introduce into advanced technique from foreign country, our company and Bread Fucine of Italy have set up the relation of production cooperation for production line of light alloy extrusion press.

 

 X Y J¡õ - ¡õ  XXXX
                      Nominal pressure (MNX100£©
                      L-vertical type £¬W-horizontal type£¬
                      Q-light alloy H-ferrous metal  T-copper, D- electrode L-cold extrusion
                      extrusion press
                      hydraulic press
                     vacancy-single acting, 2-double acting

 

     The hydraulic copper extrusion press is a special equipment which is used to make hot extrusion of red copper, brass and alloy into semi-finished product or finished product of all kinds of pipe, bar, section and special section. It is suitable for electrical engineering, industrial and civil building, meter and instrument and all kinds of copper machining factory.

 

     The hydraulic copper extrusion press is mainly made up of framework part, mechanical part, control part, assistant pipeline, detecting device, limit switch, lubricating pipeline etc. The framework part adopts the form of three beams four posts and has features of good rigidity, high assembling precision, simple structure and easy manufacture. It also has individual punch system inside and the system has a compact structure. The large press also adopts the center adjusting device and guide device for extruded cavity. The mechanical part of the extrusion press is equipped with the treating system of dummy block and remainder peeling sleeve, the circulating system of dummy block and stripper block and the lubricating device of die. The control part for needle cooling and lubricating system is divided into two forms of water pump-pressure reservoir drive and oil pump directed drive. The control valve can be slide valve or cone valve, which can be chosen freely by users. The electric control system adopts the nominal electric system and the control of PLC programmable controller. It has microcomputer function and excellences of agility, strong commonality and convenient operation, and can change working process at discretion according to the requirement of production, so it can realize the working period of automatic extrusion.

 

     The copper extrusion presses produced by our company have a relative long history. Through practice for many years, they have already been perfected, formed series and also established the production line. The production line of 2YJT2500 extrusion press includes the whole sets of equipment for all production line of billet furnace, extrusion press, water sealed device, water bath discharge table, stepping cold bed, transporting roller way before saw, saw machine, working table of saw, dimension table etc. The production line adopts the water sealed extrusion technique, the automatic lubricating system, the oil pump directed drive logic valve system and the PLC programmable control. All equipment of the whole line have advanced technique and are new products of our company. Users can select the main equipment and other assistant equipment in the production line according to your requirement.

 

The parameter table for 2YJT series of hydraulic copper extrusion press

Type and size	2YJT  440	2YJT  1200	2YJT  2000	2YJT  2500	2YJT  3500
Nominal pressure MN	4.4	12	20	25	35
Liquid pressure MPa	20	32	32	20	32
Punching force   MN	0.5	2	4	3.9	5.8
Shearing force MN		0.2	1
Extruding speed m/s	0.15	0.12	0.15	0.06	0.15
Stroke of main plunger  mm	800	1600	1950	1750	2250
Punching stroke mm	350	610	900	800	1100
Cavity stroke mm			850	400	1200
Bore diameter of extruding cylinder X length  mm	¦Õ90 ¦Õ165 X400	¦Õ150 ¦Õ185	¦Õ200 ¦Õ230 ¦Õ270	¦Õ200 ¦Õ230 ¦Õ260 X800	¦Õ150 ¦Õ200 ¦Õ250 ¦Õ300 X1000
Outline size m	15.8X13.3X2.85	20.39X8X3.79	13X3.24X3.29	35.9X9.5X5.8	23.84X4.12X3.34
Equipment weight   t	45	100	328	360	569.5
Remark	Water pump ¨Cpressure reservoir drive			Oil pump directed drive	Oil pump directed drive

 

2YJQ double-acting hydraulic light alloy extrusion press:

 

     The extrusion forming of nonferrous is one of important technical measures used in metal machining industry and has already been widely used in the industry of national defence, aviation, civil and architecture etc.

 

     The 2YJQ double-acting light alloy extrusion press is a special equipment which is used to extrude the aluminum and aluminum alloy to form the pipes, bars and sections under hot state. This equipment can extrude pipes with empty ingot and also can punch and extrude the pipe with solid ingot. The user can select the different size and type of extrusion press according to the requirement of product to produce the high quality products of different shape and different length. This kind of equipment is suitable for large, middle and small aluminum machining factory and military factory. The 2YJQ double-acting light alloy extrusion press also has the structure form of four beams (front beam, back beam, walking beam, punching beam), one cylinder£¨extruding cylinder£©and four posts (small tonnage equipment is two-three posts). The integral punching system of the equipment includes punching cylinder, punching beam, punching return cylinder, punching needle and bearing etc. It also adopts the sliding die carrier, quick-change extruding shaft, outer heating of extruding cylinder and adjusting device of punching stroke. The drive system has two forms of water pump-pressure reservoir drive and oil pump directed drive, and is controlled by main and assistant pipeline to meet the technical requirement. The electric control system is equipped with PC and control system of nominal electricity can be chosen by users.

 

     Working principle: The blank is heated to the temperature which is suitable for extrusion. The heated blank and the dummy block are sent to the extruding center line and then they are pushed into the extruding cylinder by using extruding shaft installed on the walking beam. The blank is passed through the die open under the pressure to make the metal form a extruding product which form is same as the die open.

 

     The 2YJQ hydraulic extrusion press produced by our company also use two stage of electro-hydraulic amplifier and its rate of flow can make stepless adjustment. The control can realize the remote control and automatic control. The control valve has two kinds: The slide valve and cone valve. They can be chosen by users.

 

2YJQ double-acting hydraulic light alloy extrusion press

Type and size	2YJQ  440	2YJQ 800	2YJQ  1250
Nominal pressure MN	4.4	8	12.5
Liquid pressure  MPa	20	20	20
Punching force  MN	0.5	1.1	1.92
Shearing force  MN		0.26	0.4
Extruding speed  m/s	0.15	0.037	0.024
Stroke of main plunger mm	800	1250	1550
Punching stroke  mm	350	560	730
Cavity stroke    mm		300	350
Extruding cylinder Inside diameter X length      mm	¦Õ90 ¦Õ165	¦Õ110 ¦Õ130 ¦Õ150	¦Õ130 ¦Õ150
Outline size    m	17.2X7.03X5	23.2X6.3X5.12	13.24X7.86X5.5
Weight        t	45	87.5	133
Drive   form	£¨Water pump-pressure reservoir£© Oil pump directed drive	Oil pump directed drive

 

2YJQ double- acting hydraulic light alloy extrusion press

Type and size	2YJQ  1600	2YJQ  2500	2YJQ 3500	2YJQ 12500
Nominal pressure MN	16	25	35	125
Liquid pressure   MPa	20	20	32	32
Punching force   MN	2.75	3.9	5	31.5
Shearing force    MN	0.5	0.75	1.65	5
Extruding speed   m/s	0.0276	0.025	0.02	0.008
Stroke of main plunger mm	1750	1950	2100	2500
Punching stroke    mm	800	900	1100	1650
Cavity stroke      mm	375	425	1175	2500
Extruding cylinder Inside diameter X length        mm	¦Õ160 ¦Õ180 X750 ¦Õ270	¦Õ200 ¦Õ230 X850 ¦Õ270	¦Õ175 ¦Õ200 ¦Õ230 ¦Õ280	¦Õ650 ¦Õ800 ¦Õ420 ¦Õ500 Flat  850X250
Outline size      m	26.4X8.86X5.054	13.3X5.6X5.4	46.7X13.8X6	75.5X16X11.8
Equipment weight   t	209	336	828.5	2950
Drive form	Oil pump directed drive		Water pump-pressure reservoir

 

 

     Material of section, bars and wire rods is the main variety in the material of light metal and is widely used in department of aviation, missile, astrogation, architecture, electric industry, instrument, traffic transportation and civil industry etc. At present, the products of light metal section and bar inside and outside of the country have reached ten thousand kinds. The YJQ single-acting light metal extrusion press is a special equipment which can extrude aluminum and aluminum alloy to form sections, bars and wire rods under hot state. This kind of equipment has excellency of good quality product, high productivity, convenient operation and reliable usage etc. and is suitable for using by large, middle and small scale of aluminum machining factory and military factory.

Along with development of national economy, the production capability for hydraulic light alloy extrusion press of our company has developed rapidly. It has thirty years history for our company to design and manufacture the press. For the press, their type and size are complete, capability is stable, design is advanced, structure is reasonable and series has been formed.

     For YJQ single-acting hydraulic light alloy extrusion press, the mainframe part is a structure of three beams (front, back and walking beams), one cylinder(extruding cylinder) and four posts (small tonnage equipment is two ¨Cthree posts) type. It adopts technique of slide guide, quick-change extruding shaft, outer heating of extruding cylinder etc. Its drive system has two forms of oil pump directed drive and water pump¨Cpressure reservior drive. The electric control system is equipped with PC and control system of nominal electricity can be chosen by users.

     Working principle: The blanks which have the temperature suited for extrusion are sent to the centerline of extrusion after beating heated and dummy blocked. Then the extruding shaft fitted on the walking beam pushes the blanks and blocks into extruding cylinder, the blanks pass through the die open under the pressure of the main cylinder. It makes the metal pass through the die open and forms the extruding product which has the same shape with die bore.

     The YJQ hydraulic extrusion press produced by our company also adopts two-stage of electrohydraulic amplifier. It can adjust steplessly the rate of fiow and can realize the remote control and automatic control. The control valve is sliding valve or cone valve which can be chosen by users.

The parameter table of the series

Name	Technical parameter
	YJQ315	YJQ500	YJQ630	YJQ800	YJQ1250	YJQ1600	YJQ2000
Nominal pressure MN	3.25	2	6.3	8	12.5	16	20
Liquid pressure MPa	20	20	20	20	20	20	32
Shear force  MN	0.13	0.19		0.26	0.4	0.567	0.8
Extruding speed  m/s	0.07	0.019	0.05	0.038	0.019	0.029	0.06
Stroke of main plunger mm	900	960	1100	1250	1550	1700	1800
Cavity stroke  mm	190	250		300	350	360
Extruding cylinder Inside dia. X outer dia.	¦Õ90 X380	£¨¦Õ90¡¢ ¦Õ110£©X400	¦Õ120X390	£¨¦Õ95¡¢¦Õ120¡¢ ¦Õ140£©X550	£¨¦Õ130¡¢¦Õ150¡¢ ¦Õ170£©X700	£¨¦Õ150¡¢¦Õ170¡¢ ¦Õ200£©X750	£¨¦Õ170¡¢¦Õ200¡¢ ¦Õ220£©X800
Outline size  m	Length 10.1 Height 2.5	4.3 X2.98X2.7	18.5 X4.78X11	18.95 X4.65 X4.54	10.74 X7.86 X5.5	11.8 X7.165 X5.39	9.71 X4.66 X4.82
Equipment Weight  t	15.8	30.7	62.4	68	102	130.5	196.9
			(vertical)				£¨Water pump station£©

 

     The ferrous metal extrusion press can send billet of plain carbon steel, low-alloy, high temperature alloy, refractory metal and metal which deform difficultly to inside of extruding cylinder to carry out extrusion production of pipe, bar and section. But firstly the billet should be heated to 110¡«1250¡æ and painted inside and outside surface (painted glass lubricant ). After being painted, it can be sent for extrusion. The YJH extrusion press can also extrude billet of special type steel. 

     For ferrous metal extrusion press, the main part is also the structure of four beams  (front beam, back beam, walking beam, punching beam ), one cylinder£¨extruding cylinder£©and four posts type. The integral punching system of the press includes punching cylinder, punching beam, punching return stroke cylinder and turning needle mechanism etc. The part of front beam is equipped with rotary die frame, rotary moving back sleeve and slide-key. The extruding cavity has induction heater of extruding cylinder, locking device of quick-change extruding cylinder, punching and adjusting stroke device, die circulating device and combined device for clean-up and cooling of extruding cylinder and punching needle.

The press adopts water pump-pressure reservior drive. The control type of distributing valve is single cylinder type. The press can realize manual and automatic operation and can meet all requirements of extrusion technology for fixed needle or follow-up needle etc.

The ferrous metal extrusion press has formed production line. Besides the main machine, it also includes 40 kinds equipment of 12MN vertical punching machines, high pressure water descale device, powder painting device etc. The weight of all equipments of the whole line reaches more than 1600 tons.

Name	Technical parameter
	2YJH3500
Nominal pressure  MN	35
Liquid pressure   MPa	32
Punching force   MN	5.1
Extruding speed   m/s	0.3
Stroke of main plunger mm	2910
Punching stroke      mm	1380-
Cavity stroke         mm	1350
Extruding cylinder insidediameter X length mm	¦Õ220¦Õ260¦Õ310¦Õ350X380
Outline dimension     m	45X18X11.5
Equipment weight      t	613.3

YJL cold extrusion press:

     This equipment is quick extrusion press for cold extruding (extruding  without heating) of small size and thin wall pipes.  

     The cold extrusion press has functions of quick extruding and slow extruding etc. The press has three working systems of automatic moving, manual moving and inch moving.

This equipment is made up of main body, feeding device, output device, control part, electrical part, tool part, lubricating part, cover plate and base part etc.

     The press is a structure of integral cast-steel frame type and meets the requirements of good rigidity and high precision.

According to the technological peculiarity, it is equipped with return dial. The dial has extruding shafts and cutters, two pieces of each. For each extruding circulation, the dial needs two 90¡ãturning  (that is extrusion and cutting ).

The parameter table of the series

Type and size	YJL100	YJL1250
Nominal pressure      MN	10	12.5
Liquid pressure      MPa	20	32
Knockout force        MN	1
Extruding speed       m/s	0.012	0.25
Stroke                 mm	100	1000
Equipment weight        t	73	126
Outline size           m	11.488X5.588X7.8	2.7X2.5X6.6

 

     The press is a special equipment for extruding the electrode. Making use of different kinds of mouth types, it can extrude electrodes which have different sections. The familiar sections are roundness, squareness and rectangle etc. The electrode extrusion press has two kinds: vertical type and horizontal type.

     The horizontal press is four post horizontal type. It has a single-acting cylinder and two differential plunger return cylinder. The bar shears is fitted on the frame of stop plate and is used to cut round electrode. The vertical shears is fitted on the stop plate and is used when extruding rectangle electrode. This equipment is mainly made up of some parts below:   

1£®main body  2. pipeline  3. receiver  4.cooling chute  5. hydraulic rise-fall stacking table  6. material

cooling device  7. electrical part  8. base cover plate etc

The two main beams of the press are front beam and back beam. The feeding cylinder, mouth cover and mouth opening are all heated by electricity and the temperature can be adjusted. The feeding cylinder and mouth cover adopt operating frequency induction heating and the mouth opening adopts resistance wire heating. To meet the requirements of users of inside and outside of the country, our company has developed and designed the electrode extrusion press driven by oil at present. It makes the structure and capability of the electrode extrusion press have a great advance.

 

Type and size	YJD-L500	YJD-L2000	YJD-W1000	YJD-W2500
Nominal pressure  MN	5	20	10	25
Liquid pressure  MPa	2.5  20	5¡«32	5  32	32
Working stroke    mm	900	90 900	2700	2700
Working speed    m/s	0.0032	0.003¡«0.0045		0.0022¡«0.083
Return speed     m/s	0.0375	0.03¡«0.05		0.25
Electrode size £¨round,square£©mm	¦Õ360 220X220	240X140 700X405 218X218 400X125 140X125	¦Õ300¡«¦Õ530	¦Õ515
Height between work Table and ground  mm	800	800
Size of work table-board     mm	1000X800	¦Õ4040
Equipment weight     t	75	283.7	174	225.6
Outline dimension  m	13.86X5X10.66	15.39X2.976X2.93	10X6.5X9	22.93X3.91X 3.785