Field Notes and Hard Specs: HP290 Pre-Press Oil Expeller Reviewed

I first saw the HP290 Model First Press Oil Press Machinery Oil Expeller running in Dingzhou City, Hebei Province, China—where, to be honest, half the world’s practical oil machinery seems to be born. It’s a classic heavy-duty pre-press expeller for the “first press” stage before solvent extraction or finish pressing. And yes, it’s built for rapeseed, sunflower, cottonseed, soybean, sesame… the usual suspects.

In fact, many customers say the draw is consistency rather than flashy electronics. The frame is thick, the screw flighting is properly hardened, and the gearbox doesn’t whine (well, not much). Real-world use may vary, but the design choices are familiar and serviceable—which is what plant managers want at 2 a.m.

Where it Fits in the Line

• Materials: rapeseed/canola, sunflower, cottonseed, peanut, soybean, sesame (and similar oilseeds).
• Typical flow: cleaning → dehulling (as needed) → conditioning (80–115°C; moisture ≈6–8%) → flaking → cooking → HP290 Model First Press Oil Press Machinery Oil Expeller → cake cooling → solvent extraction or second press → filtration.
• Industries: edible oil refineries, protein meal producers, crushing plants, contract tolling facilities.

Product Specifications (indicative)

Testing & Compliance

• Oil content and residuals verified with ISO 659 or AOCS methods; batch samples every shift.
• Electrical safety per EN 60204-1; CE marking available; ISO 9001:2015 quality system at the plant.
• Welds checked by visual and spot ultrasonic methods (ISO 17640, as applicable).

Customization Options

From Dingzhou, the factory offers steam/electric jacket choices, VFD for screw speed, hardened flight upgrades, quick-change cages, and cold-press kits (for specialty oils). I guess the most requested add-on is a heavier gearbox for high-sunflower seasons.

Vendor Comparison (what buyers usually ask me)

Case Snapshot

A sunflower line in Eastern Europe swapped to a HP290 Model First Press Oil Press Machinery Oil Expeller ahead of extraction. Throughput rose ≈11% after dialing moisture to 6.5% and adding VFD speed control. Residual oil dropped from 19% to ~16% in cake (ISO 659), which, surprisingly, made their extractor slightly happier and steam balance easier.

Why Plants Pick It

• Stable pre-pressing before solvent extraction; reliable cake structure.
• Wear parts are standard sizes; easy to source from Dingzhou suppliers.
• Good price-to-tonnage ratio; many customers say ROI lands within one season.

References:

1. ISO 659:2009 – Oilseeds — Determination of oil content.
2. ISO 9001:2015 – Quality management systems — Requirements.
3. EN 60204-1:2018 – Safety of machinery — Electrical equipment of machines.
4. ISO 11201:2010 – Acoustics — Noise emitted by machinery at operator position.