Which hydraulic oil, filtration and cleanliness records should a buyer request before accepting a new GEERPOWER hydraulic injection molding machine?
Ask for a hydraulic oil evidence file that links the oil, reservoir, filters, sample point, commissioning run and open items to the exact machine. Keep oil grade, cleanliness code, filter part numbers, warm-run result, leakage status, price and delivery as NEEDS_EVIDENCE until the project records exist.
Decision checklist
- Confirm whether the machine ships with oil, ships dry or requires site filling before commissioning.
- Record oil grade, batch or drum identity, storage condition and transfer-filtration method.
- Request photos or records for reservoir condition, breather, filters, drain point and sample point.
- Decide whether an ISO 4406 or equivalent particle-count report is required for FAT, SAT or both.
- Include warm-run oil temperature, pressure response, alarm page and leak inspection in the acceptance file.
Hydraulic oil belongs in the acceptance file
Hydraulic oil is part of the acceptance file for a new servo-hydraulic injection molding machine. The buyer should define how oil is selected, stored, transferred, filtered, sampled and reviewed before the machine is treated as accepted.
Husky maintenance material lists hydraulic oil, filters, breathers, hoses and hydraulic components as injection molding machine maintenance topics. NISSEI preventive-maintenance material includes hydraulic oil condition, suction-filter cleaning and oil-leak checks. These sources support the checklist categories; they do not prove any GEERPOWER project result.
Oil cleanliness acceptance worksheet
Use this worksheet during RFQ review, FAT planning and SAT handover. The final acceptance rule must come from the selected machine, buyer maintenance standard and commissioning record.
| Review item | Buyer should provide | GEERPOWER should clarify | Evidence status |
|---|---|---|---|
| Oil specification | Site preference, ambient temperature range and maintenance standard | Recommended oil grade and any excluded oil types for the selected machine | NEEDS_EVIDENCE until the selected model file defines it |
| Storage and filling | Whether buyer or supplier fills the reservoir before shipment or site start-up | Drum identity, sealed condition, transfer pump and filtration method | NEEDS_EVIDENCE until fill records and photos exist |
| Reservoir condition | Required cleanliness expectation before commissioning | Tank check, breather, drain point, visible contamination and cleaning record | NEEDS_EVIDENCE until inspection records exist |
| Filter package | Maintenance preference and spare-filter requirement | Pressure, return, suction or offline-filter elements included in scope | NEEDS_EVIDENCE until part identities are listed |
| Sample point | Required oil-analysis format and report recipient | Where the sample is taken and whether ISO 4406 or equivalent coding is used | NEEDS_EVIDENCE until a dated report exists |
| Warm-run behavior | Required operating duration and acceptance condition | Oil-temperature trend, pressure response, alarm check and leak check | NEEDS_EVIDENCE until FAT/SAT evidence is signed |
Separate reference guidance from project proof
Chevron's plastic injection molding hydraulic-oil whitepaper explains why clean storage, handling and transfer filtration matter. ISO 4406 provides the standard context for coding particle contamination in hydraulic fluids.
Those references do not prove oil grade, cleanliness code, filter identity, warm-run result, leakage condition, warranty treatment, price or delivery for any GEERPOWER project. Keep those items open until the exact quotation, FAT/SAT record and commissioning file support them.
- Oil grade, reservoir-fill method and transfer-filtration evidence
- Filter element identity and spare-filter scope
- Sample point and dated particle-count or equivalent report
- Warm-run oil-temperature trend, pressure response, alarm and leak checks
Route open items into project review
GEERPOWER should avoid wording that implies a selected oil grade, final cleanliness target, oil-analysis result, passed FAT/SAT, warranty condition, price or delivery without exact project evidence.
Send the selected hydraulic machine route, oil preference, site maintenance standard, commissioning plan and required oil-analysis format through project review so confirmed records can be separated from NEEDS_EVIDENCE items.
This guide is an acceptance planning aid. It is not proof that a specific GEERPOWER machine has been filled, sampled, tested or accepted.
Common buyer questions
Does clean hydraulic oil prove the new machine is accepted?
No. Oil cleanliness is one evidence item. The buyer still needs machine configuration, filter identity, warm-run trend, alarm check, leakage check, safety checks and FAT/SAT records.
Should ISO 4406 be written into every RFQ?
Only when the buyer, supplier and service team agree on sample point, timing, target and reporting method. Without those details, a cleanliness code can become a vague promise.
Is hydraulic oil only a maintenance issue after delivery?
No. Filling, filtration, sampling and warm-run records can affect commissioning confidence for a new hydraulic machine. They should be defined before acceptance.
Sources and references used for this guide
- Husky injection molding machine maintenance poster (checked October 13, 2026)
- NISSEI preventive maintenance page (checked October 13, 2026)
- Chevron hydraulic oils for plastic injection molding whitepaper (checked October 13, 2026)
- ISO 4406:2021 hydraulic-fluid contamination coding page (checked October 13, 2026)
This guide supports early project planning. Final machine selection and commercial configuration must be confirmed from the actual part, mold, material, factory utilities and production target.
