How to Select Oil Expeller Capacity for Your Oil Mill

One of the most critical engineering decisions you will make when setting up a commercial oil mill is selecting the correct capacity for your oil expeller. Buy a machine that is too small, and you will bottleneck your business, forcing the machine to run beyond its thermal limits. Buy a machine that is too large, and you will waste money on excessive electricity and underutilized machinery.

At TechVMouta, we manufacture cold press expellers ranging from 7.5 HP all the way up to industrial 30 HP configurations. Here is exactly how our engineering team advises clients to calculate and select the right capacity for their operations.

Understanding Capacity: Input vs. Output

In the industrial machinery sector, capacity is almost always measured in Input (Kg per Hour), not output. An expeller rated for "100 kg/hr" means it can crush 100 kg of raw seeds in one hour.

Your output (the actual liters of oil produced) depends entirely on the oil content of the seed. For example, crushing 100 kg of mustard seeds (approx. 33-35% yield) in a TechVMouta cold press machine will yield roughly 33 to 35 liters of pure oil.

The TechVMouta Capacity Matrix

Capacity is directly tied to the motor's Horsepower (HP) and the physical size of the pressing chamber. Below is a reference chart based on TechVMouta's heavy-duty manufacturing standards from our Bulandshahr facility:

How Seed Density Affects Your Choice

Not all seeds behave the same way under pressure. If your business model focuses entirely on hard materials like dry copra (coconut) or flaxseed, you need a high-torque gearbox and a larger HP motor just to push the material through the chamber. A 10 HP TechVMouta machine easily crushes mustard, but for industrial-scale coconut oil, our engineers often recommend stepping up to a 15 HP or 20 HP unit to maintain consistent high-volume throughput without stressing the drivetrain.

Don't Forget the Electricity Factor

As you scale up in capacity, your power draw increases. A 20 HP motor draws significantly more current than a 7.5 HP motor. However, TechVMouta solves this scaling issue for oil mill owners.

By pairing your high-capacity expeller with a TechVMouta PM Series Motor, you can operate a larger, higher-capacity machine while consuming up to 50% less electricity than a traditional induction motor. This means you can size up your plant's production without destroying your operational profit margins.