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TG-3682 Melt Flow Rate Tester

Category:

Pipe and Fitting Testing Equipment

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E-mail:

lbt@lbt.ltd

WhatsApp:

+86-15102211717

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Description

Product Introduction:

This melt flow rate tester is used to determine the melt flow rate of various polymers in the viscous flow state. It is suitable for engineering plastics with relatively high melting temperatures, such as polycarbonate, polyarylsulfone, and fluoroplastics, as well as for materials with lower melting points, including polyethylene, polystyrene, polypropylene, ABS resin, and polyoxymethylene. It is widely employed in the plastics manufacturing, plastic products, petrochemical industries, and by relevant educational institutions, research organizations, and commodity inspection agencies.
This melt flow rate tester complies with the test methods for melt mass flow rate and melt volume flow rate of thermoplastic materials as specified in GB/T 3682.1 “Determination of Melt Mass Flow Rate and Melt Volume Flow Rate of Thermoplastics,” ISO 1133:2011, and ASTM D 1238-2010.

Working principle

Melt flow rate refers to the mass of molten thermoplastic that flows through a standard die in 10 minutes under specified temperature and load conditions, expressed as MFR, or the volume of melt that flows through the standard die in 10 minutes, expressed as MVR. These values characterize the viscous–flow behavior of thermoplastics in the molten state; see Sections 6 and 7 of GB/T 3682‑2, “Determination of Melt Mass Flow Rate and Melt Volume Flow Rate of Thermoplastics.”

Technical Specifications:

Temperature control range	50℃-450℃
Temperature indication error	≤±0.2℃
Temperature fluctuation degree	±0.1℃
Clock accuracy	0.1s
Recovery time	≤4min
Indicated error of piston displacement	±0.01mm
Die inner diameter	Φ2.095±0.005mm
Die length	8±0.025mm
Barrel inner diameter	Φ9.55±0.025mm
Piston rod head diameter	9.475±0.015mm
Piston rod head length	6.35±0.1mm
Test weights	Relative error ≤ 0.5%
Level 1	0.325 kg (piston rod + weight tray + thermal insulation sleeve + No. 1 weight)
Level 2	1.2kg
Level 3	2.16kg
Level 4	3.87kg
Level 5	5kg
Level 6	10kg
Level 7	12.5kg
Level 8	21.6kg
Power supply	220V

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

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What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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TG-3682 Melt Flow Rate Tester

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Address:Tianjin Jinghai Economic Development Zone

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