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Hot Chamber Die Casting Machine

Hot chamber die casting machine has horizontal and vertical types. Horizontal type is full automatic. Vertical type is semi-auto to produce die casting products which has insert parts. Suitable for Lead (PB) alloy, Zinc (Zamak) alloy, Tin alloy etc. Provide die casting mold. Email: cnkylt@aliyun.com
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  • 12T,20T,30T
  • HD
  • 8454301000

Hot chamber die casting machine is a metal rapid prototyping method. It is widely used for low melting point alloys. Such as: zinc/zamak, lead,tin and other alloys.

As it always be used to produce zinc alloy die casting parts, the machine also named: zinc die casting machine, zinc injection machine.

hot chamber die casting

And, compare with cold chamber die casting machine, this machine is small. Its key function is injection work, so it also called: small die casting machine, small zinc injection machine, small high pressure inject machine.

small hot chamber die casting inject machine

Hot chamber machine injection mechanism is immersed in melting pot. The melting furnace pot attached with die casting machine by gooseneck. The injection cylinder plunger push molten metal alloy through goose-neck structure to machine mould cavities. When mold open, we can got the finished die casting parts. One hot chamber die casting process is finished.

Horizontal and Vertical types Die Casting Machine:

1.Horizontal Hot Chamber Die Casting Machine:

Tonnage:12T, 15T, 18T, 20T, 25T, 30T

This type is full automatically, used to produce: clothes accessories, zipper puller and slider, jewelry, electric parts, lead acid battery PB parts etc.

12T hot chamber die casting machine

Horizontal Hot Chamber Die Casting Machine Specifications and Parameters:


ITEMS & TYPE

           Horizontal Hot Chamber Die Casting Machine Parameters

12T

18T

20T

25T

30T

Locking Force

120Kn

180Kn

200Kn

250Kn

350Kn

Tie Bars Inner Space

190×220mm

215×225mm

235×245mm

235×245mm

280×320mm

Moving Platen

Stroke

120mm

125mm

125mm

125mm

170mm

Profiling Thickness

110 – 190mm

110 – 190mm

110 – 190mm

110 – 190mm

150 – 250mm

Injection Pressure

14Kn

20Kn

20Kn

20Kn

45Kn

Injection Stroke

55mm

72mm

72mm

72mm

95mm

Dosage of Fluid

Metal Per Shot

Zn:100g

Zn:180g

Zn:220g

Pb:500g

Zn:220g

Pb:500g

Zn:800g


Crucible Effective Capacity

Zn.70Kg

Zn.:110Kg

Zn.110Kg

Pb.130-150Kg

Zn.110Kg

Pb.130-150Kg

Zn.160Kg


Motor Power

4Kw

5.5Kw

5.5Kw

5.5Kw

7.5Kw

Accumulator Capacity

6.3L

10L

16L

16L


Working Pressure

6.2Mpa

7.0Mpa

7.0Mpa

7.0Mpa

9.0Mpa

Electric Heating

Tube Power

6.9Kw

6.9Kw

6.9Kw

6.9Kw

15Kw

Heater Power

1Kw

1Kw

1Kw

1Kw


Oil Tank Capacity

170L

170L

170L

170L

180L

Machine Weight

~ 1100Kg

~1450Kg

~ 1450Kg

~ 1450Kg

~ 2600Kg

Machine Size

220×80×180cm

250×90×180cm

250×90×180cm

250×90×180cm

265×120×170cm

Vane Pump

28L/min

28L/min

28L/min

28L/min


2. Vertical Hot Chamber Die casting Machine:

Tonnage:12T, 20T, 25T, 30T

This type is semi-auto, used to produce casting parts with insert. It is convenient to set insert parts in mould cavities. Use to produce Fishing sinker, Luya Bait, Fishing Bait, brake wire zinc end etc.

20T vertical hot chamber die casting machine

Vertical Hot Chamber Die Casting Machine Specifications and Parameters:


ITEMS & TYPE

Vertical Hot Chamber Die Casting Machine Parameters

12T

20T

30T

Locking Force

120Kn

200Kn

300KN

Tie Bars Inner Space

190×220mm

235×245mm

345×295mm

Moving Platen Stroke

120mm

125mm

125mm

Profiling Thickness

110 – 190mm

110 – 190mm

110 – 190mm

Injection Pressure

14Kn

20Kn

30Kn

Injection Stroke

55mm

72mm

120mm

Dosage of Fluid

Metal Per Shot

Zn:100g

Zn:220g

Pb:500g

Pb:1000g

Crucible Effective Capacity

Zn.70Kg

Zn:110kg

Pb:130-150Kg

Pb:300Kg

Motor Power

3.75Kw

3.75Kw

5.5KW

Accumulator Capacity

6.3L

16L

16L

Working Pressure

8Mpa

7.0Mpa

7.0Mpa

Electric Heating

Tube Power

7.5Kw

7.5Kw

9.5Kw

Heater Power

1Kw

1Kw

1KW

Oil Tank Capacity

120L

170L

170L

Machine Weight

~ 1000Kg

~ 1450Kg

~2500Kg

Machine Size

120×90×210cm

200×90×240cm

170×90×250cm

Vane Pump

28L/min

28L/min

30L/min

What is a hot chamber die casting machine structure?

Hot chamber die casting machine with a suitable mold (die/tooling) can be used to produce zinc, lead, tin, and other low melting alloys die casting parts.

die casting die of hot chamber machine

The small hot chamber horizontal die casting machine details structures:

A hot chamber machine contains a melting furnace pot, machine body & base, clamping mold mechanism, accumulator, hydraulic system etc. Now, we will show you the small hot chamber horizontal die casting machine details structures:

1. Front structure of hot chamber machine:

hot chamber die casting machine structure

2. Back side of hot chamber pressure die cast machine:

hot chamber pressure injection machine back side structure

3. Horizontal hot chamber die casting machine right side structure:

hot chamber die casting machine right side structure

4. Hot chamber pressure injection machine left side structure:

hot chamber die casting machine left side structure

There is a injection mechanism on the melting pot. Electric heating tubes be set on the pot bottom to melt metal alloy. Injection mechanism (cylinder plunger) is immersed in a molten metal bath of a metal holding furnace. Hydraulic station drives injection plunger punch molten metal from furnace gooseneck structure to die casting mould. Gooseneck is a metal feeding system, which attach the furnace pot to die casting machine.

gooseneck structure of die casting machine

The advantages of HD special melting pot goose-neck structure:

  1. Pot material made from special stainless iron.

  2. Molten metal alloy flow into hot chamber directly.

  3. Gooseneck structure be cast together with pot.

  4. Gooseneck structure connect with nozzle, which has a designed angle to keep molten metal level same with nozzle hole. That avoid many air be push into mold cavities.

gooseneck die casting machine melting pot

Machine base is a hydraulic tank. It bears the furnace and machine body. Die casting machine body key structure is the clamping mechanism. The contains guide ways, mold platens, mold adjusting system etc.

hot chamber die casting machine body

Die casting machine pressure from the hydraulic station. Accumulator used to balance the machine pressure.

die casting machine accumulator & injection plunger

What is hot chamber die casting process?

Hot chamber die casting process is same with cold chamber die casting. Using pressure,force molten metal through die casting machine chamber to a pre-shaped mold cavity.

Hot-chamber die casting key characteristic: the metal be heated inside the casting machine rather than a separate machine or furnace.

As hot chamber casting machine injection mechanism is immersed in the molten metal and connect with machine body by gooseneck metal feeding structure, it also known as goose-neck machines.

Hot-chamber casting machines feature a built-in furnace, in which metal is heated to achieve a molten state. A hydraulic-powered piston that forces molten metal out of the pot and inject into the die.

Hot chamber die casting process,is very fast. Normally one die casting cycle about 7shots per minute. The machine is not suitable for high melting point metal. it’s ideal for low melting point  metal such as: zinc alloy (~400℃), lead alloy (~320℃)and tin alloy.

Hot chamber die casting detail process:

1.Melting Furnace Pot

Electric heating tubes heat metal alloy to molten state. (If first time use the melting pot, no alloy cover the electric heating tubes, we need pour molten alloy to the pot or use burner to melt metal blocks in pot firstly. When metal alloy covers the heating tubes, machine electric heating method can be used. )

2. Hot Chamber Injection Process

1st. Die casting die is clamped and the injection plunger rises, opening the hot chamber hole, allowing molten metal flow into the chamber cylinder.

2nd.The plunger seals the hot chamber hole, pushing the molten alloy through the gooseneck and nozzle into the mold cavities where it is held under pressure until metal alloy solidifies.

3rd.After the metal has solidified in the cavity, the plunger is withdrawn.

4th. Die casting machine movable platen move back and mold opens. Die casting parts be eject out from movable die half by ejector pins.

5th.Lubricating and cooling mold cavity. Die casting mold temperature is about 150℃.

6th>Mold closes and to start the next injection cycle.

More about hot chamber die cast process please view video:(youtube 链接)

About the cold chamber die casting process please view video: (youtube 链接)

For your new die casting project, please feel free to email us: cnkylt@aliyun.com We will choose suitable machine types, suggestions of mould design, provide free die casting samples.

What are the advantages and disadvantages of hot chamber die casting?

Same with Cold chamber die casting, Hot chamber die casting also is HPDC process (High pressure die casting). They are forcing molten metal into steel molds (dies) with high pressure. Then we can got high precision die cast products.

Hot chamber die casting has the following five advantages:

1. Long die life

Normally zinc die casting molds (dies) life is about 200,000times. Longer than cold chamber die casting die. (Cold chamber die casting mold life is about 50,000times.)

2. Mass production

The machine functions automatically, fast & high productivity, can be multi cavities in one mold. Normally hot chamber machine one minute shot 7times. For example, the metal zipper puller. In 20T hot chamber die casting machine, one minute inject 7-10times, one mold has 10-20pcs pullers.

3.High precision, thin wall, good surface

As hot chamber die casting machine most used to manufacture zinc parts. Especially for electronic connector, box of distributor& brancher of cable TV system. They are made from zinc alloy, surface with precision screw threads and thin wall is required. Excellent dimensional and surface accuracy allows the zinc parts can be plated directly.

4.Saving cost

In hot chamber die casting process, Zinc die casting parts has smooth surface, precise dimensions. They can be used to assembly without machining. Due to the die cast parts no burr and flash, that reduce processing equipment and labors, Saving cost.

5.Surface treatment

Shacking polish, shot blasting, painting, powder coating, electroplating etc surface treatment is allowed.

Hot chamber die casting machine disadvantages:

1 Hot chamber machine only suitable for low melting point metal. So, it only can manufacture zinc, tin, lead alloy. For aluminum, copper etc, we use cold chamber machine.

2 Under High pressure, molten metal by injected into die cavities with air holes. That cause casting part body has mini air holes. Can not be heat treated.

3 As the die cost is high, It is not suitable for small batch production. Normally, for small quantity or samples, we provide CNC prototyping service. That can got a sample from 3D design to finished part fastly.


More about hot chamber die cast process please view video:

1. Full auto horizontal die casting machine video https://youtu.be/k2nq4q4CYao

2. 12T vertical die casting machine video https://youtu.be/6yC_AQaJMTU

3. 20T vertical die casting machine fishing bait making https://youtu.be/SliYJiJdz5I

4. 20T zinc end wire casting machine L-type machine https://youtu.be/0bVZTJE6zT4

5. 20T vertical wire zinc end die casting machine (wires position locking mechanism-wire retainer)

https://youtu.be/56BcfLUQAOw


About the cold chamber die casting process please view video:

1. Manual cold chamber die casting machine video:

https://www.youtube.com/shorts/npYbgva3NK8

2. Auto cold chamber die casting machine video:

https://www.youtube.com/watch?v=LCafa6yLESc



About small 12T horizontal die casting machine price, or die casting mould, please feel free to email us: cnkylt@aliyun.com We will choose suitable machine types, suggestions of mould design, provide free die casting samples.


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Application

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