Hot Feed Rubber Precision Preformer, DRLW-Q Series

Rubber preforming machine combining screw extruder and gear pump for making rubber blanks

The hot feed rubber precision preformer is a highly efficient and accurate machine used for producing rubber blanks. The preformer operates by conveying hot rubber material using a screw and gear pump and cutting it into fixed sizes and shapes. It can be used for producing a wide range of rubber and silica gel products, and its precision, compact size, and ease of operation make it an ideal choice for independent production processes. Additionally, the hot feed rubber preformer is capable of producing rubber blanks in various shapes including rings, strips, and rounds, making it suitable for the manufacturing of rubber miscellaneous parts, sealing parts, oil seals, inflating valves, tennis balls, soles, and other rubber products.

Specification

Items	Unit	DRL150W-Q	DRL200W-Q	DRL250W-Q
Screw diameter	mm	150	200	250
Screw L/D ratio	L/D	6:1	6:1	5.4:1
Screw rotation speed	Rpm	0-40	0-40	0-40
Speed of gear pump	Rpm	0-40	0-40	0-40
Cutter speed	Rpm	0-400	0-400	0-400
Total power	KW	55	75	110
Max. extrusion pressure	MPa	35	35	35
Temperature controlled by mould temperature machine	°C	20-90	20-90	20-90
Max. die diameter	mm	190	190	190
Rubber blank weight range	g	0.1-6000	0.1-6000	0.1-6000
Weight accuracy (99% compound)	Percentage	≤±0.5%	≤±0.5%	≤±0.5%
Max. capacity	kg/h	750	1200	1800
External dimension (L*W*H)	m	4.5×1.9×2.2	4.8×1.9×2.2	5.0×1.9×2.2
Weight	t	8	11	14
Feeding type	Cold/Hot	Hot	Hot	Hot

Advantages The hot feed rubber precision preformer is utilized to cut the normal temperature strip rubber compound into the customer's desired shape and weight continuously. The weight accuracy of the rubber blank is monitored to within ± 0.5% via the control of a gear pump.
Using a scales feedback system to ensure automatic caliberate of blank weight.
Error alarm with an icon displaying fault location, acting as regular reminders for workers to conduct spot-checks and calibrate the weight of rubber blanks.
Reliable systems and interlock head and cutter can help prevent work-related injuries.
Stainless steel sealing of all machine heads prevents rubber from spilling onto the ground, resulting in decreased pollution, as well as conserving the raw material. Quick product setup with PLC control and process parameters database.
A separation structure using an electric motor supports the gear pump, screw and machine head, simplifying rubber raw material replacement and conducting easier cleaning.
The searchlight is a useful tool for cleaning, helping to ensure that all those tricky, hard to reach spots don't get overlooked.
Both system and extrusion pressures are intuitively displayed on the touch screen.
When creating a prototype of a new product, having a PLC in operation provides useful data that can be used to streamline the process.