Casting Aluminum Tank — Centralized Lubrication Reservoir
IsoHiTech supplies casting aluminum lubrication reservoirs for centralized grease and oil systems—integral tanks on electric pumps, workshop skids, and multi-line lubricators. Cast aluminum gives light weight, natural corrosion resistance, and stable geometry for sight glasses, filler breathers, and level-switch bosses after CNC machining.
Material: casting aluminum alloy. Typical capacities: 3 kg, 6 kg, 10 kg, 16 kg, 25 kg grease or oil fill (confirm net volume on drawing). Process: casting + CNC for ports and mounting faces. Package: wooden case. No MOQ on standard sizes—prototype and OEM line-fit welcome.
Pair with grease pumps, 20703 automatic grease pump, electric motor grease pump, P215 multi-line pump, and plastic reservoirs for compact DC units. For filtration upstream, see inline grease filter.
| Item | Typical |
|---|---|
| Capacities | 3 / 6 / 10 / 16 / 25 kg class |
| Material | Cast aluminum + machined interfaces |
| Use | Grease or oil centralized lubrication |
| MOQ | None on standard sizes |
Why Aluminum for Lubrication Reservoirs
On a centralized lubrication skid, the reservoir is not passive storage—it sets pump suction head, thermal stability, and service access. Aluminum tanks are lighter than steel for mobile and rooftop cabinets, and the oxide skin resists condensation rust common in wash-down plants. Compared with polypropylene tanks on small 1–4 kg pumps, cast aluminum suits higher pressure, larger fill volume, and stud-mounted pumps where wall stiffness matters.
Integration on Grease & Oil Systems
- Electric progressive pumps — tank top or side mount; level switch boss machined in cover
- Multi-line pumps (P215 class) — larger 16–25 kg headroom for long PM intervals
- Workshop transfer skids — paired with barrel pumps; aluminum sub-tank for clean fill buffer
- Oil circulation — thermal conductivity helps dissipate heat on high-duty oil loops (with breather/filter)
Specify: NLGI grade, max system pressure, ambient °C, filler port thread, and whether cover needs visual level or M12 level switch pocket.
Common Casting Methods (Manufacturing)
1. Die casting
- High-pressure die casting — molten aluminum injected into steel dies; best for uniform lubrication tank bodies with thin walls and repeatable port locations.
- Low-pressure casting — lower porosity for larger covers and complex ribbed bases.
2. Sand casting — economical for low-volume or prototype reservoirs; may need extra machining for sealing faces.
3. Permanent mold (gravity die) — good mechanical properties and surface for medium/high volume pump tanks.
4. Investment casting — for small precision covers, breathers, and adapter flanges—not usually the main tank shell.
Applications in Lubrication (Not Generic Fuel Storage)
While aluminum castings appear in automotive fuel tanks, this product line targets industrial lubrication:
- Steel mill and forging press progressive grease systems
- Cement plant fan bearing cabinets
- Port crane and conveyor centralized grease
- Wind-turbine yaw/pitch lubrication skids (oil or grease per design)
Advantages
- Lightweight — easier cabinet handling and crane installs
- Corrosion resistance — outdoor and marine-adjacent environments
- Thermal conductivity — helps on oil systems with frequent duty cycles
- Machinable — CNC ports for ISOHiTech pump flanges and sight glasses
Design & Quality Considerations
- Porosity control — degassing and die design affect leak-tight cover seals; pressure-test after machining.
- Surface finish — sealing faces ground flat; external as-cast or painted per plant spec.
- Volume vs weight rating — quote in kg fill and confirm NLGI #2 density assumption on drawing.
- Breather / desiccant — open vent on grease tanks; filtered breather on oil tanks to reduce ingression.
Aluminum vs Plastic Reservoir Selection
| Factor | Cast aluminum | Plastic PP |
|---|---|---|
| Typical size | 3–25 kg | 1–4 kg |
| Pressure class | Higher pump families | Hand / small DC pumps |
| Mounting | Bolted pump stud, stiff flange | Integral on compact pump |
| UV / outdoor | Paint or anodize option | Shade or cover advised |
Send tank drawing with pump model, NLGI grade, and port thread list for BOM confirmation.
Standard sizes include 3, 6, 10, 16, and 25 kg fill class. Custom volumes are available with casting + CNC quote.
This page covers centralized lubrication reservoirs for grease or oil on industrial pumps—not automotive fuel tanks.
Use aluminum for larger electric/multi-line pumps and stiff mounting. Use plastic for compact 1–4 kg hand or small DC units.
Yes—CNC machining after casting for breather, filler, sight glass, and level-switch bosses per your pump interface drawing.
No MOQ on listed standard sizes; OEM line-fit batches supported.