A rubber process analyzer (RPA) evaluates and quantifies the dynamic properties of cured and uncured rubbers and rubber compounds. Here’s how it works, why it beats a Mooney viscometer or MDR for many jobs, and what sets the Premier RPA apart.
- An RPA measures physical properties plus molecular weight, MWD and polymer architecture such as long-chain branching
- Use it for compound optimization, process simulation and troubleshooting, and quality control
- Premier RPA advantages: stiffer low-friction seals, separate test and analysis interfaces, Extended Dynamic Range
- Lab staff can calibrate it after a seal change, with a dedicated Alpha support professional behind you
What Is a Rubber Process Analyzer?
A rubber process analyzer (RPA) is a rubber testing instrument used to evaluate and quantify the dynamic properties of cured and uncured rubbers and rubber compounds. The ends of a prepared rubber compound sample are secured into conical dies. One die remains still while the other oscillates, putting shear stress on the rubber sample.
An RPA can test the physical properties of rubber materials as well as molecular weight (MW), molecular weight distribution (MWD), and polymer architecture, such as long-chain branching.
What’s the Difference Between a Scientific Rheometer and an RPA?
Benefits of Using a Rubber Process Analyzer
There are several advantages to using a rubber process analyzer (RPA) instead of a Mooney viscometer, moving die rheometer (MDR), or other rubber dynamics testing methods.
Raw material and compound optimization
Testing compounds with an RPA before and after curing lets manufacturers quantify the outcome of every change to a formulation and optimize for both processing and performance before investing in large-scale production. RPA data supports goals such as scrap reduction and overall manufacturing efficiency.
Process simulation and troubleshooting
An RPA can predict how a rubber material or compound may behave in a manufacturing environment. Identifying and addressing potential challenges early can reduce the risk of costly, time-intensive troubleshooting down the road.
Quality control and assurance
A fantastic tool for assessing the structural integrity and performance of a rubber compound under rigorous conditions. RPA testing can be conducted in extreme heat or cold to see how the sample material behaves at those temperatures.
How Does Alpha’s Premier RPA Compare With the Others?
We designed the Alpha Technologies Premier RPA with premium features and quality components to outperform every other RPA on the market.
Stiffer seals with low friction
Made from a stiffer material than our competitors’ seals, preventing slippage and keeping material from leaking or flowing beneath the seal plate. The stiffer seals also prevent loss of signal during testing.
Separate user interfaces
Separate interfaces for testing and data analysis can be used at the same time, so team members can review data without waiting for a current test to finish.
Extended Dynamic Range
The Premier RPA captures more data points per second than any other RPA on the market. EDR is critical for RPA testing, especially when low strain results in a small signal.
Easy calibration
Unlike other RPAs that require professional calibration, the Premier RPA can be calibrated by your laboratory staff after changing the seals. No fudge factors, and no downtime waiting for a service appointment.
Premier torque standards
Alpha Technologies has invested in top-quality torque standards for the Premier RPA, ensuring accurate calibration and margin of error.
Unmatched maintenance and support
Your company is paired with a dedicated support professional for RPA maintenance, calibration, and repairs, who becomes an expert on your setup and needs.
Highly accurate data, every time
The Alpha Technologies Premier RPA is a proven, field-tested industry leader in dynamics testing. We designed it with premium features, top-quality components, and a user-friendly software platform, to ensure streamlined operations and accurate data, every time. It performs reliably in fast-paced environments, from laboratories to factory floors, so you can stick to your production schedules and stay ahead of your competition.
Invest in a Premier RPA
Investing in a Premier RPA will meaningfully enhance your rubber product development process and quality control efforts.