Why the Right Accessories Make All the Difference
Investing in a planetary centrifuge is a major step toward modernizing your extraction lab. However, the centrifuge itself is only one piece of the puzzle. The cups, filtration inserts, and testing instruments you pair with your system directly influence product quality, workflow efficiency, and long-term operational costs. Choosing the right accessories from the start helps you avoid bottlenecks and get the most out of every processing cycle.
In this guide, we walk through the essential lab equipment and accessories that complement the Spin Tech STP-1500 and STP-3000 centrifuges, so you can build a setup that runs smoothly from day one.
Centrifuge Cups: Stainless Steel vs. Polypropylene
Every centrifuge run starts with loading material into a cup, and the cup you choose affects chemical compatibility, durability, and ease of cleaning. Purge Technologies offers two primary options designed to fit Spin Tech centrifuges securely.
Stainless Steel Cups
The Stainless Steel Cup is built from high-grade stainless steel that resists corrosion and withstands demanding laboratory conditions. It is the go-to choice for operators running aggressive solvents like butane and propane, because stainless steel does not degrade or warp under repeated centrifugation cycles. Furthermore, stainless steel is easy to clean and sterilize between batches, which helps maintain product purity. At $199.00, this cup is a long-term investment that pays for itself through durability alone.
Polypropylene Cups
For labs that need a lightweight, cost-effective alternative, the Polypropylene Cup at $42.00 offers excellent chemical resistance and reliable performance. Polypropylene is a versatile thermoplastic that holds up well against a wide range of solvents and reagents. These cups are ideal for labs running multiple batches simultaneously, since you can keep several cups loaded and ready to go. In addition, their lower price point makes it practical to maintain a larger inventory of spares on hand.
According to ScienceDirect research on polypropylene, this material offers broad chemical compatibility that makes it suitable for most extraction solvents used in cannabis processing.
Mesh Filtration Insert: One Machine, Two Functions
One of the most innovative accessories in the Purge Technologies lineup is the Mesh Filtration and Locking Stainless Cup. This patent-pending insert transforms your Spin Tech centrifuge into a dual-purpose machine capable of both separation and evaporation. Instead of transferring material between separate pieces of equipment, you can filter solids from liquids and then proceed with solvent removal in the same unit.
The insert is available with 25-micron and 5-micron mesh options, which gives operators precise control over filtration. A 25-micron mesh works well for initial separation of plant material, while the 5-micron option catches finer particulates for a cleaner final product. This level of filtration control is especially valuable for THCa isolation and HTE processing, where clarity and purity directly affect product grade.
As noted by the American Chemical Society, precise filtration is a critical step in producing high-purity cannabis concentrates. The ability to handle this step inside the centrifuge itself eliminates a transfer point where product loss and contamination can occur.
Residual Solvent Testing: The SRI 310 GC
Processing is only half the equation. Verifying that your finished product meets residual solvent limits is essential for compliance and consumer safety. The SRI Instruments 310 FID GC is an ultracompact gas chromatograph designed specifically for residual solvent measurement. It pairs perfectly with the STP-1500 and STP-3000, allowing you to test product in-house in minutes rather than waiting days for third-party lab results.
Having a GC on-site means you can narrow down your standard operating procedures in real time. If a batch still shows elevated solvent levels, you can run another centrifuge cycle immediately and retest. This feedback loop dramatically shortens the time between extraction and a compliant finished product. At $11,750.00, the SRI 310 GC eliminates the recurring cost and delays of outsourced testing, which adds up quickly for high-volume operations.
The Occupational Safety and Health Administration (OSHA) emphasizes the importance of monitoring chemical exposure in processing environments. In-house GC testing supports both product compliance and workplace safety by giving operators immediate visibility into solvent levels.
Building Your Complete Setup
When configuring a new lab or upgrading an existing one, think about your accessories as a system rather than individual purchases. Here is a practical approach to building out your centrifuge setup:
- Start with the centrifuge: Choose the STP-1500 for standard operations or the STP-3000 for higher-capacity needs.
- Stock multiple cups: Keep at least two stainless steel cups for primary runs and several polypropylene cups for batch staging.
- Add filtration capability: The mesh filtration insert lets you consolidate separation and evaporation into one machine, reducing equipment footprint and transfer losses.
- Close the loop with testing: An in-house GC like the SRI 310 gives you immediate feedback on solvent levels, so you can refine SOPs without waiting on external labs.
This combination covers the full post-processing workflow from raw extract to tested, compliant product. Each accessory is designed to work seamlessly with Spin Tech centrifuges, so there is no guesswork about compatibility or fit.
For more information on cups and inserts, visit the Spin Tech Cups and Inserts collection. If you have questions about configuring your lab, the Purge Technologies team is available through the contact page to help you find the right combination for your operation.
Final Thoughts
A planetary centrifuge is a powerful tool, but its full potential depends on the accessories and instruments you surround it with. Quality cups ensure durability and chemical compatibility. Filtration inserts streamline your workflow by combining two processes into one. And in-house solvent testing closes the feedback loop so you can produce compliant product faster. Together, these accessories turn a centrifuge into a complete processing station that saves time, reduces labor, and improves product quality across every batch.
