the rubber transfer molding Machine is ideal for the production of solid rubber parts, rubber parts with inserts, and parts that require bonding rubber to metal. Rubber transfer molding combines the advantages of injection rubber molding with the ease of compression molding. this process is most often used for forming rubber products that require:

 Exact positioning

 Bonding rubber to metal parts

 Mold designs that contain multiple cavities and can trap air

 Intricate parts with lower volume requirements

 

the rubber transfer molding machine sometimes can also be regarded as an economic replacement type injection molding machine,because its manufacturing cost is lower than injection molding machine,so to adopt the transfer molding machine not only can realize the purpose of making rubber parts by injection way,but can also save investment cost for machines. 

 

Advantages of Transfer Molding Process:

1. Transfer Molding cycle time is shorter than Compression Molding cycle (but longer than Injection Molding cycle)

2. theTransfer moldingMethod is capable to produce more complicated shapes than Compression Molding.

3. Maintaining closer dimensional tolerances than compression molding.

4. Provides uniformity among the molded products.

5. Fast mold setup.

 

Workflow ofRubber Transfer Molding: 

the process of transfer molding Process:

 PUshing unvulcanized rubber throughtheSprue into a heated mold. Similar to compression molding, transfer molding also requires raw material preparation into Rubber pellets and/orRubberPreforms.

Instead ofPlacing the Rubber preforms in the mold cavity, the preforms are placed in aBarrel " pot" at the top of the mold.and then,tHe plunger, mounted on the top plate, moves downwards, pressing on theRubberand forcing it to fill the mold cavity below through the sprue.

duringthe curing process, the plunger is kept in place until the preform takes on the shape of the mold and the rubber is vulcanized.  Once the part cures, hardens, cools, it is then ejected. Any excess cured rubber left in the potis removed and the mold cavities are cleaned for the next molding cycle to begin.

Transfer Molding for Rubber to Metal Bonding Process:

Transfer molding is an Effective solution for , theMetalComponents are loaded into a heated mold either by hand or using a loading fixture.  Rubber mAterial is then loaded into the Charge pot of the transfer mold. while the mold closes, the rubber is heated and then transferred through the sprue into the mold cavities andDistributedaround the metal insert. with the pressure and elevated temperatures, the rubber cures and vulcanizes, allowing the parts to be removed.

 

Technical Specification:

Model	JC-YCB63T	JC-YCB100T	JC-YCB200T	JC-YCB300T	JC-YCB350T	JC-YCB500T
Tonnage	63T	100T	200T	300T	350T	500T
Max.System pressure	21 Mpa	21 Mpa	21 Mpa	21 Mpa	21 Mpa	21 Mpa
Rapid Clamping speed	≥60mm/s	≥60mm/s	≥60mm/s	≥60mm/s	≥50mm/s	≥50mm/s
Platen size(mm)	350x350   400x400	450x450   500x500	510x540   600x550	700x650	700x700	700x700 800x800 950x800
Max.Daylihgt opening(mm)	350	350	400	400	400	400
Max.Temperature(℃)	250	250	250	250	250	250
Material barrel size(mm)	φ70x215	φ80x255	φ90x290	φ110x355	φ110x355	φ130x445
Injection pressure (Mpa)	60	60	60	100	100	100
Injection stroke(mm)	320	350	380	450	450	580
Max.Ejector force	60KN	60KN	60KN	100KN	100KN	100KN
Ejector mechanism (optional)	2TR/3RT/4RT	2TR/3RT/4RT	2TR/3RT/4RT	2TR/3RT/4RT	2TR/3RT/4RT	2TR/3RT/4RT
Ejector stroke(mm)	250	250	300	350	400	450
Motor power(KW)	5.5	5.5	7.5	7.5	11	13
Heating power(KW)	9.6	9.6	18.6	20.6	20.6	27.8
Dimension(LxWxH:mm)	1600x1900x3000	1700x2100x3100	1950x2300x3250	2150x2600x3900	2550x3600x5250	2750x4200x5950
Oil tank capacity(Liters)	160	270	320	350	400	600