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  4. Peel Tester

Peel Tester VPA series

VPA series

VPA-H100F: Compact model with 100mm wide sample stage

VPA series

VPA-H200F: Standard model with 200mm wide sample stage

VPA series

Specially designed sample stage to mount bicycle wheels

VPA series

Specially designed sample stage with height adjustable cell unit

VPA series

Exchangeable load cell units: available with 0.1N, 1N, 5N, 10N, 50N, and 100N full scale rated capacity

VPA series
VPA series
VPA series
VPA series
VPA series

Peel Strength Testing

KYOWA’s patented Flat Plate Cross Stage Method

KYOWA’s patented Flat Plate Cross Stage Method

The flat specimen stage sits on a rotary table, with which the peel angle can be swiftly adjusted from 0 to 180º without using jigs or tools. The employed synchronized actuator mechanism enables maintaining the same peel rate and peel angle during the stage travel. No complex adjustments and calculations are required.

Quick and easy setting of the peel angle

Quick and easy setting of the peel angle

Demonstrations of peel tests at different peel angles

Example of peel strength data

Example of peel strength data
  • Peel angles between 0 and 180º
  • Peel rates from 3 up to 30.000mm/min
  • Effective peel area of up to 40x200mm
  • Quick and easily exchangeable load cell units (0.1N, 1N, 5N, 10N, 50N, and 100N full scale rated capacity) incl. calibration kit
  • Overload protection (at 90% of the full-scale rated capacity of the load cell)
  • Emergency stop button

Hardware

  • Heater-type temperature-controlled sample stage for measurements from ambient to +180℃
  • Jacket-type temperature-controlled sample stage for measurements from +10 to +70℃
  • Protective cover with an optional interlock safety switch
  • 2kg manual hand roller for preparing tapes
  • Peel behavior observation by a special camera system
  • Equipment for tensile strength testing (applicable only with 50N or 100N load cell units)
  • A wide variety of different kinds of grips, such as pneumatic grips
  • Special sample stage for 180º peel tests
  • Effects of peel angles and peel rates on peel behavior of PSA tapes, packaging films, labels, release papers/films
  • Peeling properties between carbon fiber prepregs and release papers
  • Releasing strength between protective films and critical surfaces such as phone displays, glasses, metals, carpets
  • Peel/bond strength between laminated film layers, holograms on plastic cards, coating films on glass or metal, adhesive tapes on silicon wafer and frames
  • Adhesive strength between thin-film electrodes and current collectors in lithium-ion batteries
  • Adhesive strength between ceramic green sheets and carrier films for laminated ceramic capacitors
  • Visualization/observation of the peeling process from above and behind the adherend
  • Low force tensile strength tests of various films
  VPA-H100F VPA-H200F
Measuring method Flat Plate Cross Stage Method
Rated capacity (full scale)
load cell units
0.1N, 1N, 5N, 10N, 50N, 100N

Maximum measuring load 90% of the load cell’s rated capacity
Display resolution
of load cell units
0.1N, 1N, 5N, 10N: 0.001N
50N, 100N: 0.01N
Adherend sample shape:
Dimensions (WxL)
Maximum thickness
flat sheet, plate, or strip
50x130mm
3mm
flat sheet, plate, or strip
50x230mm
3mm
Max. peel area (WxL) 40x100mm 40x200mm
Stage travel speed range (Vs) 3-12000mm/min 3-30000mm/min
Max. stage travel distance (Ds) 100mm 200mm
Default sampling rate 1) every 0.20mm every 0.25mm
Peel rate (Vp)

Vp=Vs (Peel rate=Stage travel speed)
the peel rate is independent of the peel angle
Peel rate dependency

measurement of one peel rate or
gradually changed peel rates within one measurement cycle
Peel angle dependency measurement of any peel angle between 0 and 180°
Analysis contents


- peel force versus peel distance
- peel force versus peel rate
- peel force versus peel angle
Dimensions (WxDxH) 620x400x270mm 910x550x270mm
Approximately weight 25kg 41kg
Electric power:
Voltage
Frequency
Power consumption

AC100-240V
50/60 Hz
25W 65VA
Operating environment

temperature: +10 to +35℃, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration

1) For both models, the sampling rate can be set to 0.10mm for peel rates up to 6000mm/min and to 0.05mm for up to 3000mm/min.

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