NM01TB10S4
This set of four (4) individual weight lift test bars is specifically designed for the calibration and certification of Magnetic Particle Inspection (MPI) yokes, particularly for direct current (DC) field or permanent magnet yokes. According to various industry standards (such as ASME Section V, ASTM E709, ASTM E1444, and MIL-STD-271), DC yokes must be capable of lifting a minimum of 40 pounds (18.14 kg) to ensure they generate sufficient magnetic field strength for effective flaw detection.
Each bar in the set typically weighs 10 pounds (4.54 kg), meaning the four-bar set totals 40 pounds. The bars are precision-machined from ferromagnetic material, often N-18 Cold Roll Steel, to ensure consistent and accurate weight. They are serialized and come with a Certificate of Conformance or Calibration traceable to NIST (National Institute of Standards and Technology), providing assurance of their accuracy and compliance with testing requirements.
These test bars are indispensable tools for NDT technicians and inspectors to verify the performance of their magnetic particle inspection equipment, ensuring the reliability and validity of their inspections.
Key Features & Benefits:
MPI Yoke Calibration: Essential for verifying the lifting power of magnetic particle inspection yokes (both AC and DC, though the 40-lb test is critical for DC).
40-lb Total Lift: The set comprises four individual 10-lb bars, allowing for step-wise or full 40-lb lift testing.
Certified Weight: Each bar's weight is precisely measured, stamped on the bar, and traceable to NIST standards.
Compliance: Helps meet various industry specifications and codes (e.g., ASME, ASTM, MIL-STD) for MPI equipment calibration.
Durable Construction: Made from robust steel (e.g., N-18 Cold Roll Steel) for long-lasting use in industrial environments.
Ensures Inspection Reliability: Regular calibration with these bars ensures the MPI yoke is performing optimally, leading to accurate defect detection.
Technical Specifications (Approximate - based on Parker TB-10S-4):
Total Weight: 40 lbs (18.14 kg)
Weight per Bar: 10 lbs (4.54 kg)
Quantity in Set: 4 bars
Material: N-18 Cold Roll Steel (or similar ferromagnetic steel)
Certification: Traceable to NIST
Typical Bar Dimensions: Approximately 10" L x 3" W x 3/8" D (254 mm L x 76 mm W x 9.5 mm D).
(Note: Dimensions might vary slightly between manufacturers, but generally are flat or rectangular bars to provide a good contact surface for the yoke poles.)
Application: Calibration and certification of AC and DC magnetic particle inspection yokes.
AC Yokes typically require a 10 lb. lift test.
DC Yokes (and permanent magnets) typically require a 30 lb. or 40 lb. lift test, hence the 4-bar set.
Applications:
Routine calibration and certification of portable and stationary magnetic particle inspection yokes.
Quality control procedures in NDT laboratories and field inspection operations.
Compliance with industry standards for MPI.