The filling port and the breathing point of a hydraulic reservoir in one part. As oil leaves, the tank has to draw air in — and that air carries whatever your site is made of. This is what filters it before it gets in.
State the oil displacement rate, the machine's environment, and whether you need a basket or dipstick — quotes within 2 working hours.
| Families | SPB 4 & SPB 5 (plastic) · SMBB-47 (metal) |
|---|---|
| Air flow | SPB 1.00 m³/min · SMBB 0.40 m³/min |
| Oil displacement | SPB 1,000 l/min · SMBB 400 l/min |
| Elements | 3 · 10 · 40 micron — or no element |
| Pressurisation | 0.2 / 0.35 / 0.7 bar — SPB only |
| Temperature | SPB −40…+120 °C · SMBB consult |
| Sealings | SPB NBR · SMBB cork |
The element table, basket/dipstick options, hole patterns and order codes are on this page, as printed in the catalogue.
| At a glance | SPB | SMBB-47 |
|---|---|---|
| Cap | Ø101 mm | Ø47 mm |
| Material | Polyamide | Steel |
| Pressurisation | Yes | No |
| Dipstick | Yes | No |
| Specification | SPB 4 / SPB 5 (plastic) | SMBB-47 (metal) |
|---|---|---|
| Cap diameter | Ø101 mm / 3.98 in | Ø47 mm / 1.85 in |
| Max air flow rate | 1.00 m³/min (35.31 cfm) | 0.40 m³/min (14.13 cfm) |
| Oil displacement covered | 1,000 l/min (264 US gpm) | 400 l/min (106 US gpm) |
| Mounting | SPB 4: single hole, clamping jaws · SPB 5: six-hole bolt pattern (similar to DIN 24557 part 2) | Three-hole bolt pattern, bayonet version |
| Body / cap | Glass-fibre reinforced polyamide | Steel, zinc/nickel plated (Fe/Zn Ni 6); chrome or epoxy versions available |
| Sealings | NBR (Buna-N) | Cork |
| Operating temperature | −40…+120 °C | Consult STAUFF |
The plastic SPB moves two and a half times the air of the metal SMBB — and the SPB is the only one that can be pressurised and the only one that takes a dipstick. The SMBB-47 is smaller, is steel so it stands knocks better, and is the only one offered chrome-plated or epoxy-coated.
| Code | Element type | Family | Application |
|---|---|---|---|
| 10 | 10 µm foam/PUR | Both | Standard — ordinary industrial environments |
| 40 | 40 µm foam/PUR | Both | Clean surroundings, or where air flow is the priority |
| E03 | 3 µm inorganic glass-fibre pleated | SPB | Dusty & abrasive — cement, quarrying, foundries |
| L10 | 10 µm filter paper pleated | SPB | Plant standard — more media area than foam |
| 03 | 3 µm filter paper | SMBB | The fine option for the metal breather |
| 00 | No element | Both | Port functions only as a filler — the tank breathes elsewhere |
Pick the element on where the machine lives, not on the oil. A blinded element gives no warning — the symptom is a tank that struggles to breathe, and by then it has already been drawing air past seals. Change it on a schedule, not on symptoms; a clean assembly hall and a cement plant are not comparable.
Pressurisation options — SPB only
| Code | Setting | Effect |
|---|---|---|
| S | Without pressurisation | Free breathing both ways — the default for most machines |
| P1 | 0.2 bar / 3 psi | Light positive pressure — reduces the in-breath |
| P2 | 0.35 bar / 5 psi | Middle setting |
| P3 | 0.7 bar / 10 psi | Maximum — confirm the reservoir was designed for it |
Pressurise only if the tank was built for it. It cuts the volume of ambient air drawn in — in a humid climate that mostly means less moisture condensing onto the oil — but it loads every seam, seal and sight glass on the reservoir. On the SMBB-47, pressurisation is not available at that cap diameter.
| Option | Size | Notes |
|---|---|---|
| S080 | 105 mm / 4.13 in | Standard plastic basket, 800 µm |
| S200 | Telescopic to 205 mm / 8.07 in | Reaches deeper into tall tanks |
| S095P | 95 mm / 3.74 in | Flanged (DIN 24557 part 2 interface) — SPB 5 only |
| S065 | 65 mm / 2.56 in | Steel, zinc plated, 800 µm — SMBB option |
| D200 | 200 mm / 7.88 in | Plastic dipstick with integrated anti-splash |
| D300 | 300 mm / 11.81 in | Plastic dipstick — can be cut down to suit |
The anti-splash feature stops returning oil splashing up into the breather. That matters because oil on the element blinds it — the air path closes up and the tank stops breathing properly. It is the failure nobody notices until seals start weeping.
| Model | What to make in the tank plate |
|---|---|
| SPB 4 — single hole | Only the aperture — it clamps in with three clamping jaws on cross-drive screws. No other drilling. |
| SPB 5 — six holes | Bolt circle Ø73 ±0.2 mm around a minimum Ø63 mm aperture — interface similar to DIN 24557 part 2. |
| SMBB-47 — three holes | Bolt circle Ø41 mm, aperture Ø28 mm, 3× M5. |
SPB 5 screw holes by sheet thickness
| Sheet thickness | Hole diameter |
|---|---|
| 1.20 mm | Ø4.0 mm |
| 2.00 mm | Ø4.1 mm |
| 4.00 mm | Ø4.3 mm |
| 5.00 mm | Ø4.4 mm |
Why does the hole size depend on the sheet? Because the screws supplied with the SPB 5 are sheet metal screws that form their own thread as they go in — the hole has to suit the material they are forming. Allow Ø122 mm / 4.80 in of mounting space around an SPB.
Fixings supplied
| Model | Fastener | ISO standard | Alternative |
|---|---|---|---|
| SPB 5 | 6 sheet metal screws | ISO 7049-St 4.8×16-C-H | M5 socket cap (ISO 4762) |
| SMBB-47 | 3 slotted pan head screws | ISO 1580 M5×12-5.8 | Regular M5 bolts |
SPB — example SPB-S-4-10-X-A-D200
| Position | Options |
|---|---|
| 2 — Pressurisation | S none · P1 0.2 bar · P2 0.35 bar · P3 0.7 bar |
| 3 — Version | 4 clamping jaw · 5 six-hole |
| 4 — Element | 00, 10, 40, E03, L10 |
| 5 — Basket | S080, S200, S095P (SPB 5 only), X none |
| 6 — Anti-splash | A with (standard) · 0 without |
| 7 — Dipstick | D200, D300, - none |
SMBB — example SMBB-47-S-10-0-C-S065
| Position | Options |
|---|---|
| 2 — Cap / finish | 47 zinc/nickel · 47C chrome-plated · 47E epoxy-coated |
| 3 — Label | S STAUFF logo · N neutral |
| 4 — Element | 00, 03, 10, 40 |
| 5 — Pressurisation | 0 — none available at this size |
| 6 — Sealing | C cork |
| 7 — Basket | S065 65 mm metal · 0 none |
The SMBB cap finish is free of hexavalent chromium (CrVI). Need a different micron rating or material? STAUFF invites enquiries for alternative materials and micron ratings on both families, and alternative body materials on the SPB — send the fluid and environment detail.
Full dimensions and part numbers are in the catalogues, as printed; stock and price are not — send the list and we confirm both.
Compare its oil displacement figure with how fast oil actually leaves your reservoir. The SPB covers 1,000 l/min; the SMBB-47 covers 400 l/min. Undersize it and the tank either draws air past the seals or pulls a partial vacuum against the pump.
Pick it on where the machine lives, not on the oil. 10 µm foam is the standard, right for ordinary industrial surroundings. 40 µm suits clean environments or where air flow is the priority. 3 µm — glass-fibre on the SPB, filter paper on the SMBB — is for genuinely dusty and abrasive places.
The plastic SPB moves two and a half times the air of the metal SMBB. After that, the SPB is the one that can be pressurised and the only one that takes a dipstick; the SMBB-47 is smaller, is steel so it stands knocks better, and is the only one offered chrome-plated or epoxy-coated.
It stops returning oil splashing up into the breather from below. That matters because oil on the element blinds it — the air path closes up and the tank stops breathing properly, which is the failure nobody notices until seals start weeping.
Yes, but there is a rule: the dipstick must be at least 15 mm / 0.59 in shorter than the basket. Otherwise it fouls the bottom of the strainer and neither part works properly.
Only if the tank was built for it. Pressurisation (0.2, 0.35 or 0.7 bar on the SPB) cuts the ambient air drawn in — in a humid climate that mostly means less moisture condensing onto the oil. But it loads every seam, seal and sight glass on the reservoir.
The plastic SPB is rated −40 to +120 °C. For the metal SMBB the sealing is cork rather than NBR and STAUFF asks to be consulted on temperature.
The SPB 4 needs only the aperture — it clamps in with three clamping jaws. The SPB 5 needs a six-hole pattern on a 73 mm bolt circle around a minimum 63 mm aperture (similar to DIN 24557 part 2). The SMBB-47 needs three M5 holes on a 41 mm circle around a 28 mm aperture.
Because the SPB 5 screws are sheet metal screws that form their own thread, so the hole has to suit the material they are forming. STAUFF recommends 4.0 mm at 1.20 mm sheet, 4.1 mm at 2.00 mm, 4.3 mm at 4.00 mm and 4.4 mm at 5.00 mm.
Yes. The SPB 5 comes with six sheet metal screws (ISO 7049-St 4.8×16-C-H) and the SMBB-47 with three slotted pan head screws (ISO 1580 M5×12-5.8). Both can be substituted — M5 socket cap to ISO 4762 on the SPB, regular M5 bolts on the SMBB.
On a schedule rather than on symptoms — because the symptom of a blinded element is a tank that struggles to breathe, and by then it has already been drawing air past seals. The interval depends entirely on the environment.
Yes — STAUFF invites enquiries for alternative materials and micron ratings on both families, and alternative body materials on the SPB. Send the fluid and environment detail.
Our running items: SPB with a 10 µm foam element, anti-splash, no pressurisation, and the standard-finish SMBB-47 — held in our regional warehouses in Singapore and Malaysia, out within 24 hours. Pressurised versions, 3 µm elements and telescopic baskets are built to order.
Related: STAUFF level gauges · tube cleaning system · pressure gauges · about the STAUFF brand · all accessories · baca halaman ini dalam Bahasa Indonesia