Blow moulded containers fail at the weld, the corner or the thinnest wall, and failures usually appear when a filled pack is dropped or stacked. Our blow molding testing instruments reproduce those loads in the lab. As blow molding testing instruments manufacturers in India and suppliers in India, we serve bottle, drum and tank plants and the test labs that audit them.
The range matches the failure modes of hollow plastic parts. Burst, squeeze and drop testers show how a container survives pressure, handling and falls. A drum compression tester and the ultrasonic gauge check large drums and tanks. The pinch-off weld tester inspects the bottom seam, while the ESCR bath looks at long-term cracking with chemicals. The pendulum impact tester, gloss and haze meter and parison swell apparatus support material and process control.
Most plants begin with burst, drop and thickness tests and add the ESCR bath for detergent and chemical packs.
Last updated: November 2026
Hydraulic burst tester for HDPE, PP and PVC bottles made by extrusion blow molding. Used by makers of chemical, lubricant and dairy packaging to see wall distribution problems and weak weld lines.
Compression fixture with load cell that measures squeeze force and panel deflection of blow molded bottles. Used by makers of shampoo, lotion and food squeeze bottles to confirm feel and recovery.
Heavy duty compression tester for blow molded plastic drums, jerry cans and large containers. Used by manufacturers of industrial packaging to qualify stacking load capacity and design changes.
Free-fall drop tester for water-filled HDPE jerry cans, drums and bottles from set heights and orientations. Used for type approval testing and for product development of blow molded containers.
Thermostatic bath with bottle pressure fittings for stress cracking of blow molded HDPE bottles filled with surfactant. Used by detergent, lubricant and chemical bottle makers to rank resin and wall design.
Meter that measures gloss and haze of blow molded bottles and films. Used by cosmetic, food and pharma packaging molders to check appearance and clarity and to set mold temperature and cooling.
Extrusion plastometer with laser micrometer for measuring parison diameter and swell ratio of HDPE melt. Used by extrusion blow molders to tune die gaps and to compare resin grades.
Pendulum tester that evaluates impact strength of specimens cut from blow molded parts, often after cold conditioning. Used to check regrind quality, mixing and low temperature performance of containers.
Tester that evaluates strength of the pinch-off weld at the base of blow molded containers by tensile pull of a cut section. Used to detect weak welds that cause drop failures.
Ultrasonic gauge for non-destructive thickness measurement of HDPE tanks and large blow molded components from one side. Used by tank and drum makers to confirm wall distribution after molding.
| Function | Products | What to confirm |
|---|---|---|
| Pressure and load resistance | Bottle Burst Pressure Tester for Blow Molded HDPE Containers, Bottle Squeeze and Panel Rigidity Tester, Compression Tester for Blow Molded Drums | Pressure range in bar, platen size, maximum load in kN and bottle or drum size handled. |
| Impact and weld strength | Drop Impact Tester for Blow Molded Plastic Containers, Pendulum Impact Tester for Blow Molded Plastic Samples, Pinch-Off Weld Strength Tester for Blow Molded Bottles | Drop height and bottle mass, pendulum energy, and fixtures for pinch-off weld specimens. |
| Chemical stress resistance | Environmental Stress Crack Test Bath for Blow Molded Bottles | Bath temperature range, number of bottle stations, pressure fitting type and reagent compatibility. |
| Wall and appearance checks | Ultrasonic Wall Thickness Gauge for Blow Molded Tanks, Gloss and Haze Meter for Blow Molded Bottles, Parison Swell and Die Swell Measurement Apparatus | Gauge frequency and measurable thickness, meter geometry, and die and barrel specification for swell tests. |
Blow moulding instruments suit HDPE, PP and PVC containers made from an extruded parison, so they include pinch-off weld, parison swell and drum compression testers. Stretch blown instruments are designed for PET made from injection moulded preforms and focus on preform stress, intrinsic viscosity and acetaldehyde. The two ranges share burst, drop and thickness measurement concepts.
See also: Stretch Blown Testing Instruments
The complete Blow Molding Testing Instruments range (10 products), in alphabetical order:
Confirm the pressure range, fill medium and the way pressure ramps, since a controlled rise gives repeatable results. Check bottle neck fittings for your finishes, a transparent safety guard, and peak pressure display. Ask whether the tester can hold a set pressure for a time as well as burst, since many specifications ask for both.
ASTM D2463 describes drop impact of blow moulded thermoplastic containers, usually with the bottle filled with water or the product and conditioned at set temperatures. The tester should drop bottles flat, on the base or on the shoulder from a repeatable height. Check height scale accuracy and release mechanism.
If you pack detergents, cosmetics, agrochemicals or lubricants in HDPE, stress cracking can occur weeks after filling. ASTM D2561 covers bottles under internal pressure in a heated reagent bath. Check temperature uniformity, station count and compatibility of the bath material with your reagents.
HDPE and PP bottle makers, jerry can and drum manufacturers, water tank and industrial container producers, agrochemical and lubricant packers with in-house moulding, and independent packaging labs. A first order usually includes burst, drop and thickness testing, while drum makers add a heavy compression tester for stacking certification.
It measures the force needed to deflect a bottle wall by a set distance. The value controls how the bottle feels, how it dispenses and how it behaves in pack stacking, and it varies with wall thickness distribution.
The bottom seam is the weakest part of many blow moulded bottles. Tensile or burst testing of the weld shows if parison temperature, mould pinch design and cooling are correct and whether the bottle may leak under load.
After leaving the die, the molten tube expands. Measuring this swell helps set die gaps and predict wall thickness, so the process can be adjusted without wasting resin.
Yes. The equipment is manufactured in India and supplied to plants and labs across the country and to export buyers. We provide specifications for tenders, and installation help is available at the plant.
An ultrasonic wall thickness gauge reads from one side of the container, so tanks and bottles stay intact. Calibrate against the polymer you use and check the probe suits curved walls.
Civil Mechanical India is an established manufacturer and supplier for tender requirements from India, handling civil laboratory and industrial testing tenders and bulk and OEM orders for mechanical engineering and testing laboratory equipment. On receipt of your tender specifications, we will submit a complete quotation for Blow Molding Testing Instruments.
Send us your equipment list or tender specification. We quote against IS, BS, EN, ASTM and AASHTO standards and ship to 90+ countries.
