Single-inlet, six-outlet G1/8 threaded rotary joint with 4mm orifice for pneumatic and light fluid applications. PTFE composite seal, AL6061 body. Ø39 × 50 mm, 265 g. Distributes one air supply to six outlets — ideal for assembly stations, rotary tables, and small pneumatic manifolds. Ships in 7 days.
BP-1P-0006 is a single-inlet, six-outlet rotary joint designed for low-pressure pneumatic distribution. The 4mm orifice provides balanced flow across all six outlets when supplied from a common inlet. The AL6061 body keeps weight at 265 g, while the deep-groove ball bearing supports smooth rotation up to 300 RPM. The PTFE composite seal provides chemical resistance across air, water, and coolant media with idle torque ≤0.15 N·m.
| Model Number | BP-1P-0006 |
|---|---|
| Passages | 1-in-6-out (single inlet, six outlets) |
| Orifice Size | 4 mm |
| Thread Type | G1/8 (BSPP) |
| Rotor Connection | 4-M4 (rotating side) |
| Stator Connection | 4-M4 (fixed side) |
| Mount Type | G1/8 Threaded |
| Max Pressure | 1 MPa (10 bar / 145 psi) — derate to 0.7 MPa for continuous water duty |
| Max Speed | 300 RPM — derate to 200 RPM for continuous water or coolant |
| Compatible Media | Air, Water, Water-Soluble Coolant, Light Hydraulic Oil |
| Leakage acceptance | Specified by model; confirm test criteria before ordering. |
| Body Material | AL6061 Aluminum Alloy |
|---|---|
| Seal Type | PTFE Composite Seal |
| Bearing Type | Deep Groove Ball Bearing |
| Operating Temperature | -20°C to +80°C |
| Net Weight | Approx. 0.265 kg (265 g) |
| Dimensions | Ø39 × 50 mm |
| Idle Torque | ≤0.15 N·m |
| Service Life | ≥8,000 hours (rated conditions) |
|---|---|
| Certifications | ISO 9001:2015, CE, RoHS |
| Warranty | 12 Months |
AL6061 aluminum body: 6061-T6 aluminum alloy with yield strength 276 MPa and density 2.70 g/cm³. The anodized surface provides corrosion resistance for intermittent water and coolant exposure. At 265 g, the body adds minimal load to small rotary mechanisms. Not recommended for continuous immersion in aggressive coolant or caustic washdown without additional surface treatment.
PTFE composite seal: Polytetrafluoroethylene with glass fiber and graphite filler. Self-lubricating, chemically inert, and rated for -200°C to +260°C. The composite structure maintains structural integrity while providing a low friction coefficient (0.05–0.10 against aluminum) ideal for rotary seals in lightweight housings.
Deep groove ball bearing: Standard single-row deep groove ball bearing (ISO 608 or equivalent) with steel races and rubber seals. Pre-lubricated for life. The bearing supports radial loads from the rotating manifold and maintains concentricity of the 4mm orifice passages. Replace bearing if axial play exceeds 0.05 mm.
BP-1P-0006 is designed for applications where one air supply must feed multiple outlets on a rotating platform. The six-outlet design eliminates external manifolds and reduces fitting count. This model may be suitable for the listed applications when its passage count, mounting, medium, pressure, speed, and temperature limits match the machine requirements.
Proper installation extends seal life from 6 months to 12+ months. The most common cause of early failure on BP-1P-0006 is overtightening the G1/8 threaded connection, which distorts the lightweight AL6061 housing and creates leak paths at the seal interface. Follow these steps for reliable operation.
BP-1P-0006 uses BSP parallel (G) threads — G1/8 — and 4× M4 mounting holes on both rotor and stator sides. Confirm your equipment has G1/8 female threads or appropriate adapters. Do not use NPT adapters — they add length and create stress concentrations that crack the Ø39 mm aluminum body under side load. Download the 2D drawing for exact dimensions, pitch (0.907 mm for G1/8), M4 hole pattern, and tolerances.
Use PTFE tape (3–4 wraps) or anaerobic liquid thread sealant on the G1/8 male threads. Hand-tighten plus 1/4 turn maximum. Overtightening distorts the AL6061 housing, compressing the PTFE seal unevenly and creating a leak path within days. Torque spec: 8–12 N·m for G1/8. Use a torque wrench — "finger tight plus a quarter turn" is not precise enough for a 265 g aluminum body. If you feel the housing flex, you are already overtightened.
Use the 4× M4 mounting holes to secure the rotary joint body to a fixed bracket. Torque M4 bolts to 2–3 N·m. Never let the body rotate freely with the shaft — the supply hose will twist and the seal will experience reverse torque, accelerating wear. For vertical mounting, support the body from below to prevent gravity from loading the bearing axially.
Use flexible hoses (not rigid pipe) to connect the stationary side to the air supply. Rigid pipe transfers vibration and thermal expansion directly to the joint, stressing the seal. Install a 40-micron filter upstream to protect the PTFE seal from debris. For water or coolant, add a Y-strainer (60 mesh) to prevent particulate damage. Ensure all six outlet lines are roughly equal length to maintain balanced flow distribution.
Run at low pressure (0.2 MPa) and low speed (50–100 RPM) for 5 minutes without load. This beds the PTFE seal against the shaft surface, creating a micro-smooth contact zone. Check for leaks at the thread and seal interfaces. If dry, gradually increase to operating pressure and speed over 10 minutes. Skipping the run-in is the #2 cause of early seal failure — the seal needs time to conform to the shaft surface finish.
Full dimensions, tolerances, thread specs (G1/8), M4 mounting hole pattern, shaft finish requirements, and seal groove details. 120 KB.
Free 3D files provided after inquiry. Includes G1/8 thread option and M4 mounting hole pattern. Use for CAD fit verification before ordering.
Complete guide: thread matching, torque specs, anti-rotation, filtration, run-in procedure, and maintenance checklist. 650 KB.
AL6061 material traceability, hardness test report, and RoHS compliance certificate. Available upon request with order.
Not sure if BP-1P-0006 is the right model? Use this comparison to decide — and know exactly when to upgrade to a multi-inlet or higher-pressure joint.
| Your Requirement | BP-1P-0006 Fit | Better Alternative | Why Upgrade |
|---|---|---|---|
| Single air line to 6 tools, weight critical | ✅ Perfect — 265 g AL6061 | — | — |
| Single air line, stationary manifold, rigidity critical | ✅ Good — compact Ø39 mm | — | — |
| Need independent pressure control per outlet | ❌ All outlets share one inlet | BP-2P-0001 | 2 passages with independent seals for clamp + unclamp |
| Pressure >1.0 MPa (e.g., 1.2 MPa hydraulic) | ❌ Over pressure rating | BP-2P-0002 | 1.5 MPa rated, dual passage |
| Dusty or abrasive environment (steel mill, foundry) | ❌ No dust protection | BP-2P-50-0001 | Dust-proof seal and protective shroud |
| Food-grade or medical cleanroom | ❌ Standard seal not FDA | Custom FDA-grade | FDA 21 CFR 177.2600 compliant seal |
| Continuous water immersion | ⚠️ Risk of corrosion | Stainless steel version | 304 or 316 stainless body with passivation |
The #1 cause of BP-1P-0006 warranty claims is overtightening. A technician uses a pipe wrench and applies 20 N·m on a G1/8 thread rated for 8–12 N·m. The lightweight AL6061 housing distorts, compressing the PTFE seal unevenly. Incorrect installation or operation outside the specified limits can cause premature leakage. Failure timing depends on alignment, medium, pressure, speed, temperature, and duty cycle. The technician blames seal quality and requests a replacement — but the root cause was installation torque. Rule: Use a torque wrench. Hand-tighten plus 1/4 turn maximum. For G1/8: 8–12 N·m. If the housing flexes, stop immediately.
A machine builder needs six vacuum cups with different suction levels for irregular parts. They buy BP-1P-0006 and install flow restrictors on each outlet. The result: when one cup seals against a flat surface, back-pressure rises and the other cups lose suction — parts drop. Rule: BP-1P-0006 is a distribution manifold, not a pressure regulator. All six outlets share the same inlet pressure. For independent channel control, use BP-2P-0001 or BP-3P-0004 with separate inlet passages.
A maintenance team installs BP-1P-0006 on a dispensing rotary head and immediately runs it at 0.8 MPa and 200 RPM. The PTFE seal has not bedded into the shaft surface — microscopic high spots create leak paths. Within 2 weeks, flow drops 15% across all six outlets, and dispensing volume becomes inconsistent. The team replaces the seal, but the same thing happens again because they skip the run-in every time. Rule: Run at 0.2 MPa and 50–100 RPM for 5 minutes before full operation. This beds the seal and extends life from 6 months to 12+ months.
Other rotary joints commonly purchased with BP-1P-0006 — or the models you upgrade to when your application outgrows a single-inlet manifold.
The standard version uses AL6061 aluminum alloy body with PTFE composite seal for lightweight and corrosion-resistant operation. All versions are manufactured to the same ISO 9001:2015 quality system and undergo 100% pressure testing before shipment. The domestic and export designations refer only to packaging and documentation language — the product itself is identical. For full steel body options or custom materials, contact our engineering team.
Yes — the PTFE composite seal is compatible with water, water-soluble coolant, and light hydraulic oil (up to ISO VG 32). For continuous water duty, derate pressure to 0.7 MPa and speed to 200 RPM to reduce seal wear. The AL6061 body has good corrosion resistance for intermittent water exposure thanks to its anodized surface, but continuous immersion in aggressive coolant or caustic washdown requires additional surface treatment or a stainless steel body specification. If your application involves deionized water or high-purity coolant, contact Begapunk for seal compatibility review.
BP-1P-0006 uses BSP parallel (G) threads per ISO 228-1 — G1/8 (standard). BSP parallel threads seal on a gasket or O-ring at the port face, not on the thread itself. This means PTFE tape on the thread is for sealing only; the mechanical connection is made by the flat face compressing against the mating port. The rotary joint also has 4× M4 mounting holes on both rotor and stator sides for anti-rotation brackets. Download the 2D PDF drawing for exact thread dimensions, pitch (0.907 mm for G1/8), M4 hole pattern, and tolerances. NPT and metric thread options are available as custom orders.
Yes — free 3D STEP and IGES files are provided after you send an inquiry. The file includes the G1/8 thread option, M4 mounting hole pattern, and the six-outlet port arrangement. Use the 3D file to verify clearance, port direction, and thread engagement length in your CAD assembly before ordering. 3D files may be provided for qualified projects after the application requirements are reviewed. File availability and response time depend on the model and the project information provided. Include your CAD software name if you need a specific file format.
Upgrade when your application needs independent pressure control or multiple inlet media. Common triggers: (1) You need different pressures on different outlets — BP-1P-0006 shares one inlet across all six outlets, so flow restrictors cause back-pressure interference. (2) Your pressure requirement exceeds 1.0 MPa — BP-2P-0002 handles 1.5 MPa. (3) You need clamp and unclamp on the same rotary table — BP-2P-0001 provides two independent passages. (4) Your environment becomes dusty or abrasive — BP-2P-50-0001 has dust-proof protection. The upgrade cost is typically $15–$40 more than BP-1P-0006, but it prevents the $200+ cost of scrapped parts from pressure interference.
We design custom rotary joints for any number of passages, pressure, thread type, and mounting style. Free 3D STEP file with every inquiry. Typical custom lead time: 10–14 days.
Request Custom Design →Technical Note: All pressure ratings, speed ratings, and material specifications referenced on this page are based on Begapunk BP-series standard pneumatic rotary joints tested under controlled laboratory conditions. Actual performance depends on operating conditions, media quality, installation practices, and maintenance schedule. For applications outside standard ratings — including high-pressure hydraulic, continuous water immersion, food-grade, or cleanroom environments — consult Begapunk factory engineering before specification. Last updated: June 11, 2026.