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Mullen type Burst Tester | 167

  • M2-HD/M2-LD (Digital model) M2-HD/M2-LD (Digital model)
  • E-H/E-L (Analog model) E-H/E-L (Analog model)
  • M2-HD/M2-LD (Digital model)
  • E-H/E-L (Analog model)

Mullen type Burst Tester | 167

ISO 2759, ISO 2758

The Mullen type Burst Tester evaluates the bursting strength of paper, paperboard, corrugated cardboard, woven fabrics and rubber-coated fabrics, etc. according to ISO 2759 (high pressure bursting strength model) and ISO 2758 (low pressure bursting strength model).

 

High-pressure bursting strength type and Low-pressure bursting strength type are available depending on testing standards and materials.   Furthermore, digital and analog models can be selected.

 

High-pressure bursting strength type (M2-HD / E-H)
ISO 2759 (JIS P 8131) Board — Determination of bursting strength

 

Low-pressure bursting strength type (M2-LD / E-L)
ISO 2758 (JIS P 8112) Paper — Determination of bursting strength
JIS L 1096 Testing methods for woven and knitted fabrics

 

Features & Benefits (M2-HD/M2-LD, digital models)

● Advanced digital model that supports testing with a variety of highly convenient assist functions.

● Stable clamping pressure is applied to sample by compressed air system.

● Feeding rate of pressure applying liquid (glycerin) is stable.

● Safety mechanism is used in sample clamping unit.

● The mechanism is so designed that height of the rubber diaphragm can be adjusted without supplementing glycerin.

● When some miss-operation such as operation without a sample occurs, the auto return mechanism operates.

● Suitability of expansion under specified pressure of rubber diaphragm can be automatically checked by means of a jig supplied with the machine.

● Hard rubber diaphragm can be automatically conditioned or adjusted by means of supplied jig.

● Equipped with cross mode to indicate strength of rubber diaphragm at the time of determining true value of bursting strength of sample. (JIS L 1018, L 1096)

● Data can be printed out by printer or communicated through RS232C interface. (Optional)

 

Features & Benefits (E-H/E-L, analog models)

● A three-stage lever switch allows normal burst and textile test modes.

● Two pressure gauges can be installed, and the pressure gauges can be easily switched according to the test material.

● Energy saving because the motor is designed to run only when pressurizing and depressurizing.

● Glycerin feed rate is stable regardless of load pressure thanks to the use of a synchronous motor.

● Forward and backward limit sensors are attached to the cylinder.

 

 

 

■ Mullen type Burst Tester (High pressure type)

 

Model M2-HD E-H
 

 

 

 

    
Specimen clamp  Pneumatic
 Hand screw clamp
Tearing strength measurement Pressure sensor (Digital display) Bourdon tube pressure gauge (Analog gauge)
Operation to soften diaphragm
 Automatic N/A
Bursting strength 7000kPa max. Analog pressure gauge (select 2 types from below)

• 2500kPa max.

• 5000kPa max.

• 7000kPa max.

*Recommended use at 25-75% of full scale
Glycerin feed rate 170±15ml/min.
Clamping surface opening • Upper: OD∅100mm, ID∅31.5mm

• Lower: ID∅: ∅31.5mm, Thickness 5.6mm
Safeguards • Finger protection mechanism

• Glycerin scattering prevention

• Overload protection

• Drive safety limiters

• Leakage breaker

 Leakage breaker
Options • Mini printer

• Data export software

 N/A
Power supply Single-phase, AC100V, 50/60Hz, 0.5kVA

(230V or 120V to 100V transformer is also available as an option)
Compressed air 0.4 to 0.6MPa —–
Dimensions W350 × D380 × H500mm W300 × D600 × H480mm
Weight (approx.) 70kg
 50kg

 

■ Mullen type Burst Tester (Low pressure type)

 

Model M2-LD E-L
 

 

 

 

    
Specimen Clamp  Pneumatic
 Hand screw clamp
Tearing strength measurement Pressure sensor (Digital display) Bourdon tube pressure gauge (Analog gauge)
Operation to soften diaphragm
 Automatic N/A
Bursting strength 2000kPa max. Analog pressure gauge (select 2 types from below)

• 500kPa max.

• 1000kPa max.

• 2500kPa max.

*Recommended use at 25-75% of full scale
Glycerin feed rate • 95±5ml/min. (JIS P 8112 specification)

• 98±4ml/min. (JIS L 1096 specifications)
Clamping surface opening <Upper>

• OD∅70mm, ID∅30.5mm (JIS P 8112 specifications)

• OD∅70mm, ID30.48mm (JIS L 1096 specifications)

 

<Lower>

• ID∅: ∅33.1mm, Thickness 3.5mm (JIS P 8112 specifications)

• ID∅: ∅31.5mm, Thickness 3.18mm (JIS L 1096 specifications)
Safeguards • Finger protection mechanism

• Glycerin scattering prevention

• Overload protection

• Drive safety limiters

• Leakage breaker

 Leakage breaker
Options • Mini printer

• Data export software

 N/A
Power supply Single-phase, AC100V, 50/60Hz, 0.3kVA

(230V or 120V to 100V transformer is also available as an option)
Compressed air 0.3 to 0.6MPa —–
Dimensions W350 × D380 × H500mm W300 × D540 × H480mm
Weight (approx.) 70kg
 50kg

 

■ Spare Parts

Name P/N Photo
Rubber diaphragm for model H, ∅80 4102481
Rubber diaphragm for model L, ∅80（JIS P 8112: 2008） 1004604
Rubber diaphragm for model L, ∅80（JIS P 8112: 1994） 1004603

 

 

 

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