If you manufacture plastic parts for electrical switches, circuit breakers, cable connectors, appliance housings, or automotive interiors – your customers almost certainly require you to prove that your plastic material meets a UL 94 flammability rating. This machine is how you prove it.
The Finetech Engineering flammability tester manufacturer India product is a sealed, draft-free combustion chamber. You put a plastic specimen inside, light a calibrated gas flame against it, and observe what happens: does it catch fire? Does it keep burning, or does it go out on its own? How long does it burn? Does it drip burning plastic? Those observations determine the UL 94 classification – from HB (burns slowly) to V-0 (goes out within 10 seconds, no flaming drips).
As a dedicated UL 94 flammability tester manufacturer India, Finetech Engineering builds this as a horizontal vertical flammability tester India – one chamber that handles both the horizontal burning rate test (UL 94 HB / ASTM D635 flammability tester manufacturer India specification) and the vertical burning test (UL 94 V-0, V-1, V-2 / ASTM D3801) simply by switching the specimen holder. You do not need two separate machines.
As a flammability testing machine for plastic rubber India specialist, Finetech Engineering also covers IS 3400 burning rate testing for vulcanised rubber – important for Indian rubber manufacturers who need BIS compliance. The same burning rate tester for plastics India machine handles both materials.
Classification | Test Position | How Quickly It Stops Burning | Flaming Drips? | What It Means in Real Life |
HB | Horizontal | Burns slowly – OR stops before 100mm mark | Not tested | Slowest, minimum rating. General-purpose plastics. Fine for housings that are not near heat sources. This is the ASTM D635 flammability tester manufacturer India test. |
V-2 | Vertical | Stops within 30 seconds per flame application | YES – drips allowed, cotton ignites | Self-extinguishing but drips burning plastic. Acceptable for some applications where drip ignition risk is low. |
V-1 | Vertical | Stops within 30 seconds per flame application | NO – no cotton ignition | Better than V-2 – self-extinguishing AND no burning drips. Required for many electrical and electronic applications. |
V-0 (Best Rating) | Vertical | Stops within 10 seconds per flame application – the toughest requirement | NO – no cotton ignition | The highest bar-specimen rating. Required for critical electrical enclosures, connectors, and switches. Most electrical OEMs require V-0. This is what your UL 94 V-0 flammability tester manufacturer India product tests for. |
5VA / 5VB | Vertical (125mm flame) | Stops within 60 seconds | NO burn-through (5VA) | Most stringent UL 94 ratings – for safety-critical parts like battery housings and high-voltage components. |
Feature | Horizontal Test (HB Classification) | Vertical Test (V-0, V-1, V-2 Classification) |
How the specimen is held | Lying flat at a 45-degree angle – like a plank tilted slightly | Hanging straight down – like a flag on a pole |
Where the flame is applied | The free end (the lower end of the tilted specimen) | The bottom end of the hanging specimen |
What you measure | How fast the flame travels along the specimen (mm per minute) | How many seconds the specimen keeps burning after the flame is removed – and whether it drips burning plastic |
Which standard it follows | ASTM D635 flammability tester manufacturer India spec, UL 94 HB, ISO 1210 (horizontal) | UL 94 V-0 flammability tester manufacturer India spec, ASTM D3801, ISO 1210 (vertical) |
How hard is it to pass? | Easier – gravity actually carries the flame away from the specimen in horizontal position | Harder – gravity pulls the flame up toward the unburned part of the specimen, making it more likely to keep burning |
When is it required? | For materials that need only a basic flammability classification – HB is the minimum requirement | For electrical, electronics, and automotive applications where self-extinguishing is required. All UL 94 V-0 V-1 V-2 flammability chamber manufacturer tests are vertical. |
Horizontal Burning Rate Test (UL 94 HB / ASTM D635)
Vertical Burning Test (UL 94 V-0 / V-1 / V-2 / ASTM D3801)
Parameter | Specification |
Product Name | Flammability Tester Manufacturer India – Horizontal & Vertical Burning Rate Chamber (UL 94 Flammability Tester Manufacturer India, Finetech Engineering) |
Also Known As | Burning Rate Tester for Plastics India, Flammability Testing Machine for Plastic Rubber India, Horizontal Vertical Flammability Tester India, UL 94 burning chamber |
Test Modes | Horizontal vs Vertical Flammability Test Difference – both modes in one chamber: Horizontal (HB) and Vertical (V-0, V-1, V-2, 5V) |
Standards | ASTM D635 Flammability Tester Manufacturer India, ASTM D3801, ASTM D4804, ASTM D5048, UL 94 V-0 V-1 V-2 Flammability Chamber Manufacturer, ISO 1210, IEC 60695-11-10, IS 3400 |
Chamber Volume | Minimum 0.5 m3 (draft-free sealed enclosure per UL 94) |
Chamber Construction | Steel frame, toughened safety glass door/window, interior lighting, exhaust fan |
Burner | Adjustable Bunsen-type burner. Calibrated 50 W (20 mm) blue flame – required by UL 94 V-0 flammability tester manufacturer India specification |
Gas Supply | LPG or methane (natural gas) – customer to arrange. Adjustable flow valve on tester. |
Specimen Size | 125 x 13 x 3.0/6.0 mm (UL 94 / ASTM D635 / ISO 1210) |
Timer | Digital timer, 0.1 second resolution – for afterflame and afterglow timing |
Cotton Indicator | Surgical cotton 50 x 50 mm positioned 300 mm below vertical specimen |
Power Supply | 230V AC, single phase, 50 Hz |
Certification | ISO 9001:2015 certified manufacturing. Calibration documentation for NABL available. |
Criterion | V-0 | V-1 | V-2 |
Afterflame time per specimen (t1 or t2) | 10 seconds or less | 30 seconds or less | 30 seconds or less |
Total afterflame for 5 specimens (all t1 + t2) | 50 seconds or less | 250 seconds or less | 250 seconds or less |
Afterflame + afterglow after 2nd application (t2 + t3) | 30 seconds or less | 60 seconds or less | 60 seconds or less |
Cotton ignited by flaming drips? | NO | NO | YES allowed |
Specimen burns up to the holding clamp? | NO | NO | NO |
Horizontal + vertical in one chamber. One machine covers ASTM D635 flammability tester manufacturer India (horizontal), and UL 94 V-0 flammability tester manufacturer India (vertical V-0, V-1, V-2). Swap specimen holders in seconds. No need for two separate horizontal vertical flammability tester India setups.
Draft-free chamber per UL 94 requirements. Air currents are the biggest cause of wrong flammability results – they can make a V-2 material look like V-0, or fail a V-0 material that should pass. The Finetech Engineering UL 94 V-0 V-1 V-2 flammability chamber manufacturer product provides a sealed, draft-free 0.5 m3 chamber with exhaust ventilation that only activates after the test is complete.
Calibrated 50 W Bunsen flame. The gas burner produces a standardised 20 mm blue flame with precise flow control. Consistent flame energy = consistent, repeatable results test after test. This is what separates a proper burning rate tester for plastics India from a cheap improvised setup.
Covers plastics AND rubber. As a flammability testing machine for plastic rubber India manufacturer, Finetech Engineering’s machine supports UL 94 / ASTM D635 / ISO 1210 for plastics AND IS 3400 for vulcanised rubber – one machine for both material types.
Calibration and NABL support. Burner calibration, gas flow verification, timer accuracy documentation – all available from your UL 94 flammability tester manufacturer India. Keeps your machine audit-ready for UL evaluations and NABL accreditation.
Product | Why You Might Need It |
Melt Flow Index Tester | Complementary material characterisation – MFI and UL 94 flammability tester manufacturer India data together fully characterise a plastic compound |
Izod & Charpy Impact Tester | Complementary mechanical testing alongside fire performance rating |
Universal Testing Machine (UTM) | Complementary tensile and flexural testing |
HDT / VSP Apparatus | Complementary thermal property testing – often specified alongside burning rate tester for plastics India data |
Humidity Chamber | For conditioning specimens at 23 deg C / 50% RH before flammability testing |
Shore D Hardness Tester | Complementary hardness testing of the same plastic compounds |
Customisation available
UL 94 is the most widely used fire safety rating system for plastic materials. Published by Underwriters Laboratories (UL), it rates how a plastic material behaves when you touch a small controlled flame to it in a lab. Does it catch fire? Does it keep burning? Does it drip burning plastic? Based on those observations, the material gets a grade: HB (basic), V-2, V-1, or V-0 (best). Most electrical and electronics companies specify which UL 94 grade they require in their plastic material specifications. The Finetech UL 94 flammability tester manufacturer India product is the machine that runs this test.
The UL 94 V-0 vs V-1 vs V-2 difference comes down to two things. First, how fast the plastic stops burning - V-0 must stop within 10 seconds, V-1 and V-2 must stop within 30 seconds. Second, whether it drips burning plastic that ignites cotton below - V-0 and V-1 are not allowed to do this, but V-2 materials can. So: V-0 = stops fast, no burning drips. V-1 = stops in 30 seconds, no burning drips. V-2 = stops in 30 seconds, but burning drips are allowed. The UL 94 V-0 V-1 V-2 flammability chamber manufacturer product from Finetech measures all three.
The horizontal vs vertical flammability test difference is: the horizontal test (UL 94 HB / ASTM D635 flammability tester manufacturer India spec) measures how fast a specimen burns lying at an angle - it gives a burning rate in mm/min. The vertical test (UL 94 V-0/V-1/V-2) measures how long a specimen keeps burning while hanging straight down - a tougher test because fire naturally spreads upward. If your customer asks for 'HB' or a 'burning rate' - use the horizontal test. If they ask for 'V-0', 'V-1', or 'V-2' - use the vertical test. The Finetech horizontal vertical flammability tester India does both in one machine.
The Finetech flammability testing machine for plastic rubber India tests all thermoplastic and thermoset plastic materials - ABS, polycarbonate, PP, PE, PVC, nylon, polyester, acrylic, POM, epoxy, phenolic, and flame retardant grades of all of these. It also tests vulcanised rubber per IS 3400. For foam materials (polyurethane, polystyrene), different test methods may apply - contact us to confirm the right configuration.
They are essentially the same test - both measure horizontal burning rate of plastic materials. ASTM D635 flammability tester manufacturer India is the standalone American standard. UL 94 HB uses the same horizontal burning method but places it within the UL 94 classification framework. Most labs use UL 94 HB because it integrates with the V-0/V-1/V-2 rating system. If your customer specifies 'ASTM D635' - use the horizontal test on your ASTM D635 flammability tester manufacturer India product. If they specify 'UL 94 HB' - same test, same machine.
If your plastic material achieves V-0 on the UL 94 V-0 flammability tester manufacturer India machine, it means: (1) when touched by a small flame for 10 seconds, the specimen stops burning within 10 seconds after the flame is removed, (2) this self-extinguishing behaviour is consistent across 5 specimens, and (3) the material does not drip burning plastic. This is the minimum requirement for most electrical enclosures, connectors, and circuit breakers from major OEMs. V-0 materials are specifically formulated with flame retardant additives to achieve this performance.
Even a small breeze from an air conditioner or open door can deflect the 20 mm flame, speed up burning, or blow out the specimen. Any of these will give you a wrong result. The UL 94 standard requires a minimum 0.5 m3 draft-free enclosure for this reason. The Finetech burning rate tester for plastics India chamber is sealed with a toughened glass door. The exhaust fan only runs after the test - never during it. This is a key quality feature that cheaper machines often skip.
Yes. The Finetech flammability tester manufacturer India product meets the apparatus requirements of UL 94, ASTM D635 flammability tester manufacturer India specification, ASTM D3801, and ISO 1210. We provide calibration documentation for the burner, timer, and chamber dimensions that supports your NABL accreditation application for plastic flammability testing.
We provide NABL-traceable dimensional certification for the notch geometry produced by the cutter — verifying that the 45° angle and 0.25 mm tip radius meet the standard requirements. This documentation supports your NABL accreditation application and is included when requested.
