The Z600-OL-CTC is the felt-cushion adapter that pairs with the Z600-OL-CT ASTM conical oil test tube on the Hermle OLEUM Oil-Test Centrifuge (Z600-OL chassis) — sold as a 2-pack. The adapter seats the glass conical oil-test tube into the Z600-OL-BUK round bucket; the felt-cushion material protects the glass tube against impact and vibration during centrifugation while ensuring the tube sits at the correct depth and orientation for protocol-compliant ASTM oil-testing analysis. The 4-place OLEUM rotor takes 2 packs (4 adapters) for full 4-bucket configuration when running ASTM conical-tube workflows.
Key Specifications
| SKU | Z600-OL-CTC |
| Type | Felt-cushion adapter — for ASTM conical oil test tube |
| Pack quantity | 2 adapters per SKU (full 4-bucket configuration takes 2 units = 4 adapters) |
| Tube format paired | Z600-OL-CT (ASTM conical oil test tube, sold separately) |
| Compatible bucket | Z600-OL-BUK (round bucket on the OLEUM rotor) |
| Compatible chassis | Z600-OL OLEUM Oil-Test Centrifuge (230 V) |
| Workflow standards | ASTM D96 (water and sediment in crude oil), ASTM D4007 (water and sediment in fuel oil), ASTM D2273 (trace sediment in lubricating oils) |
| Z600-OL host chassis specifications | 4-place swing-out, 3,000 rpm max speed, 2,213 × g max RCF, 22 cm max radius |
| List price | $271 (2-pack) |
Compatibility & When to Order This SKU
Adapter pairing — ASTM conical oil test tube workflow on OLEUM only. Order this SKU when:
- Initial OLEUM workflow setup — when commissioning an OLEUM Oil-Test Centrifuge for ASTM conical-tube workflows, order 2 packs (4 adapters) for full 4-bucket configuration.
- Workflow-recurring replacement — felt-cushion material is a wear item; the cushion may degrade over many spin cycles or after exposure to petroleum products and oil-test reagents. Replace the adapter set when felt cushion shows visible degradation.
- Mixed conical / pear-shaped workflow — when the lab runs both ASTM conical (this adapter) and ASTM pear-shaped (Z600-OL-PTC sister adapter) workflows, stock both adapter formats per workflow protocol.
Why a Felt-Cushion Adapter for Glass Tubes
ASTM oil test tubes are glass (per ASTM protocol for chemical compatibility with petroleum solvents). Glass tubes in metal centrifuge buckets risk impact damage during loading, vibration damage during spinning, and tube-bottom stress concentration that can lead to tube failure. The felt-cushion adapter:
- Protects the glass tube from direct contact with the metal bucket interior
- Damps vibration during the spin cycle, reducing stress on the tube structure
- Ensures correct tube positioning at the correct depth for protocol-compliant analysis (graduated scale alignment, tip-position consistency for water/sediment measurement)
The adapter is a workflow-recurring replacement item — typical OLEUM operation will see felt-cushion replacement on the manufacturer-recommended service interval.
Application Profile
ASTM D96 / D4007 / D2273 oil-testing workflows on OLEUM — petroleum-quality testing, fuel-quality testing, lubricating-oil quality testing labs running ASTM conical-tube workflows.
Refinery petroleum-quality testing — refineries running daily ASTM oil-testing workflows benefit from spare adapter inventory.
Field oil-quality testing labs — field-deployed oil-testing labs running ASTM workflows on the OLEUM platform.
Educational and training petroleum-engineering programs — petroleum-engineering curricula teaching ASTM oil-testing methodology.
Lubricating-oil testing in industrial labs — automotive, marine, and industrial machinery oil-testing labs running ASTM D2273 trace-sediment analysis.
Ordering & Configuration
4-bucket symmetric loading. All 4 buckets must use matching Z600-OL-CTC adapters for symmetric balance.
Felt cushion inspection. Inspect felt cushion before each cycle — the cushion should be intact, dry (not soaked with oil), and seated correctly in the bucket envelope. Replace when cushion shows wear, contamination, or compression.
Tube cap / stopper confirmation. ASTM conical tubes are typically capped per ASTM protocol before centrifugation; confirm cap integrity before each spin.
Z600-OL-CTC ships as 2 felt-cushion adapters. ASTM conical oil test tubes (Z600-OL-CT) and Z600-OL-BUK round buckets are sold separately.
Confirm at quote: chassis pairing (Z600-OL OLEUM in inventory), workflow protocol (ASTM D96, D4007, D2273), tube format (ASTM conical, pairs with Z600-OL-CT), pack count (2 packs for full 4-bucket configuration), and lead time.
Warranty: 5-Year Hermle warranty (3 years full + 2 years drivetrain) on the adapters. Felt-cushion material is a planned-replacement workflow item — confirm replacement scope at order.
OLEUM Oil-Test Centrifuge tube and adapter family (Z600-OL chassis):
- Z600-OL-CTC (this product) — Felt-cushion adapter for ASTM conical oil test tube
- Z600-OL-CT — ASTM conical oil test tube (each, glass)
- Z600-OL-PTC — Felt-cushion adapter for ASTM pear-shaped oil test tube
- Z600-OL-PT — ASTM pear-shaped oil test tube (each, glass)
- Z600-OL-BUK — Round bucket for OLEUM rotor
- Z600-OL-INS — Bottom insert for round bucket
- Z600-OL-COM — Complete OLEUM bundle (chassis + buckets + inserts)
Pair the Z600-OL-CTC with the Z600-OL-CT conical tube for ASTM conical-tube workflows.
