PT&P custom-designed big ton spring supports with stainless steel rollers for a chemical plant in Brazil. The frame is fabricated from carbon steel and the shim plates are 2205 duplex stainless steel. The design specified that these big tons are placed in a large “oil pan” that was fabricated from AR400 steel. AR400 steel is abrasion resistant and has a minimum hardness of 360 on the Brinell scale and a nominal hardness of 400. The stainless steel rollers are designed to fit inside the “oil pan” and the big tons are placed on top of the rollers. Oil is then placed inside the pan providing continuous lubrication for the assembly while accommodating the axial or lateral movement of the structure. These big ton spring assemblies include special coils and neoprene drip shields to protect the coils and oil in the pan from debris. The big tons are 26-1/2″ x 33″ x 26-1/2″ with a movement of 0.499″ down and a spring rate of 13,450 lb./in. They are designed for an operating load up to 78,318 lb. and underwent load testing prior to shipment. PT&P, along with our team of engineers and designers, specializes in making the impossible, possible. Over the years, there are many instances where our clients have come to us with unique and unusual applications requiring a product not yet developed or requiring the modification of an existing product.
Live New Webinar
Sign-up for a Live Technical Webinar…
Engineered Spring Supports (Practical, Hands-on Approach) Webinar
Date: Thursday, December 19, 2024 - Register for 10:00 am OR 2:00 pm
*Note: Time Zone is CDT * Central Daylight Savings Time / GMT -5h
Live Webinars are 1 PE/PDH Credit for TX Professional Engineers
Learn how the theoretical applications of spring supports are put into use in the real world. We will start with a review of the working principles of both variable and constant springs. See how brand new spring looks at delivery, and review installation guidelines. Learn the key points to review through the total installation process and subsequently when the springs are in operation. See how to determine if springs need adjustments, re-calibration, refurbishment, or replacement. View in field examples, shutdown, and isolation procedures. See the selection process required when there are significant changes to the operating condition.
Upcoming Webinars:
December 12th: U.S. Bellows 101 - The Basics of Expansion Joints 10:00 am OR 2:00 pm
December 26th: Pipe Support Engineering & Design Webinar 10:00 am OR 2:00 pm
Online Course
Piping Design and Analysis Influence on Pipe Support Selection and Design
Surveying a piping system? Need to change a current system?
This course is also great for…
• New Engineers, Management and Operations
• Field, Process, Maintenance and New Engineers
• Piping and Piping System Designers and/or Instructors
*This online course is approved for 8 hrs. P.E. Credits