Pneumatic-electric rotary joint integrating 3 pneumatic passages and 6 electrical circuits in a compact flange-mounted body. Simultaneously transmits air/fluid and electrical signals (power + data). AL6061 body with PTFE + Graphite / PEEK seal. Ships in 7 days. Used on automation rotary tables, packaging machinery, CNC clamping fixtures, and pneumatic-electric turntables where combined air and signal transmission saves space and wiring complexity.
BP-3P-S06-0001 is a pneumatic-electric rotary joint combining 3 independent air passages with a 6-circuit electrical slip ring. The AL6061 aluminum body is hard-anodized for wear and corrosion resistance. PTFE + Graphite composite seal provides self-lubricating low-friction operation across air, water, coolant, and hydraulic oil media. The deep groove ball bearing supports radial and axial loads from connected hoses and cables.
| Model Number | BP-3P-S06-0001 |
|---|---|
| Pneumatic Passages | 3-in-3-out (triple passage) |
| Rotor Connection | 3-M5 (rotating side) |
| Stator Connection | 3-M5 (fixed side) |
| Mount Type | Flange Mount |
| Max Pressure | 1 MPa (10 bar / 145 psi) |
| Max Speed | 200 RPM |
| Compatible Media | Air, Water, Oil, Coolant, Hydraulic Oil |
| Leakage acceptance | Specified by model; confirm test criteria before ordering. |
| Electrical Circuits | 6 circuits (2A max per circuit) |
|---|---|
| Voltage Rating | 24V DC / 250V AC |
| Electrical Contact | Gold-plated copper alloy |
| Signal Type | Mixed power + signal transmission |
| Insulation Resistance | ≤500 MΩ at 500V DC |
| Dielectric Strength | 500V AC / 50Hz, 60s |
| Body Material | AL6061 Aluminum Alloy |
|---|---|
| Seal Type | PTFE + Graphite Composite / PEEK |
| Bearing Type | Deep Groove Ball Bearing |
| Operating Temperature | -20°C to +80°C |
| Net Weight | Approx. 0.41 kg (410 g) |
| Dimensions | Ø54 x 99.8 mm |
| Idle Torque | < 0.15 N·m |
| Surface Treatment | Anodized (Aluminum) |
| Service Life | 8,000 hours (rated conditions) |
|---|---|
| Certifications | ISO 9001:2015, CE, RoHS |
| Warranty | 12 Months |
AL6061 Aluminum Alloy body: T6 temper aluminum with yield strength 276 MPa and excellent machinability. The hard-anodized surface layer (25–30 μm) provides wear resistance and corrosion protection for automation environments. At 0.41 kg, it is 60% lighter than an equivalent steel body, reducing inertia on indexing tables. Not recommended for continuous exposure to strong alkaline coolant without additional coating.
PTFE + Graphite composite seal: Polytetrafluoroethylene with graphite filler provides self-lubricating properties and a low friction coefficient (0.08–0.12 against aluminum). The composite structure maintains seal integrity across air, water, coolant, and light hydraulic oil without swelling. Graphite improves thermal conductivity, preventing localized overheating at 200 RPM.
PEEK seal option: For applications involving aggressive synthetic coolant or temperatures approaching +80°C, PEEK (Polyether Ether Ketone) offers higher mechanical strength and chemical resistance than PTFE. Specify PEEK at time of order for a 3-day additional lead time.
Deep Groove Ball Bearing: Standard 6000-series bearing handles combined radial loads from hoses and axial loads from flange mounting. Rated for 8,000+ hours at 200 RPM under clean conditions. For dusty environments, specify sealed bearings or choose BP-2P-50-0001 series.
BP-3P-S06-0001 is designed for applications that need both pneumatic power and electrical signals through a single rotating interface. The 3 air passages support clamp/unclamp/vacuum or similar triple-function setups, while the 6 electrical circuits handle sensors, solenoid valves, or low-power devices.
Proper installation of BP-3P-S06-0001 requires attention to both pneumatic and electrical connections. The most common failure mode is overtightening M5 fittings, which cracks the aluminum port boss, or pulling electrical wires too tight, which damages the slip ring brushes. Follow these steps for reliable pneumatic-electric operation.
Confirm your equipment flange has bolt holes matching the BP-3P-S06-0001 flange pattern. Download the 2D PDF for exact P.C.D., hole diameter, and flange thickness. Also verify the electrical pinout — the S06 slip ring has 6 circuits with color-coded wires. Match wire colors to your sensor/solenoid schematic before mounting. Reversing polarity on inductive loads can damage the gold-plated contacts.
Secure the flange using 4×M5 screws with spring washers. Torque to 3–4 N·m. Overtightening beyond 5 N·m warps the aluminum flange face, creating a gap that lets the body rock under hose load. This rocking motion transfers to the slip ring brushes, causing intermittent electrical contact and premature wear. Use a torque wrench — the aluminum body is less forgiving than steel.
If your model includes an anti-rotation tab, secure it to a fixed bracket with an M3 screw. Never let the body rotate freely with the shaft. Free rotation twists the electrical wires and pneumatic hoses together, creating a helical stress that breaks wire strands and kinks tubing. The anti-rotation tab is not optional — it is a safety feature that protects both pneumatic and electrical connections.
Use flexible polyurethane tubing (4×2.5 mm or 6×4 mm) with push-to-connect M5 fittings. Hand-tighten M5 fittings only — 1.5–2.0 N·m maximum. Thread sealant is not required on M5 parallel threads; the O-ring face seal does the sealing. For electrical connections, leave 50–80 mm slack in wires to accommodate rotation. Route wires through a cable gland or drag chain to prevent pull-out. Install a 40-micron filter upstream to protect the PTFE seal from debris.
Run at low pressure (0.2 MPa) and low speed (50 RPM) for 5 minutes without load. Check all 3 pneumatic passages for leaks with soapy water. Test electrical continuity across all 6 circuits with a multimeter — resistance should be <0.1 Ω per circuit. If any circuit shows >1 Ω, stop and inspect brush contact. Skipping the run-in is the #2 cause of early seal failure and brush arcing. The PTFE seal needs time to conform to the shaft surface, and the slip ring brushes need to seat into their contact tracks.
Full dimensions, tolerances, thread specs (M5 rotor and stator), flange bolt pattern, electrical pinout, and seal groove details. 120 KB.
Free 3D files provided after inquiry. Includes flange mount pattern, M5 port positions, electrical wire exit orientation, and anti-rotation tab geometry. Use for CAD fit verification before ordering.
Complete guide: flange mounting, M5 torque specs, anti-rotation, electrical wiring, filtration, run-in procedure, and maintenance checklist. 650 KB.
AL6061 material traceability, anodizing thickness report, hardness test, and RoHS compliance certificate. Available upon request with order.
Not sure if BP-3P-S06-0001 is the right model? Use this comparison to decide — and know exactly when to upgrade to a different passage count, higher pressure, or more electrical circuits.
| Your Requirement | BP-3P-S06-0001 Fit | Better Alternative | Why Upgrade |
|---|---|---|---|
| 3 air lines + 6 electrical circuits, rotary table | ✅ Perfect — integrated pneumatic-electric | — | — |
| 3 air lines only, no electrical needed | ✅ Good, but over-specified | BP-3P-0004 | Lighter, lower cost, same 3 pneumatic passages without slip ring complexity |
| 4+ air lines or Ø30mm hollow bore needed | ❌ Too few passages / no hollow bore | BP-4P-30-0001 | 4 passages with Ø30mm hollow bore for cable or shaft through-center |
| Pressure >1.0 MPa (e.g., 1.2 MPa hydraulic) | ❌ Over pressure rating | BP-2P-0002 | 1.5 MPa rated, steel body, threaded mount for higher pressure |
| More than 6 electrical circuits | ❌ Too few circuits | Custom S12 / S24 | 12 or 24 circuits with same 3 pneumatic passages; 5-day custom lead time |
| Dusty or abrasive environment (steel mill, foundry) | ❌ No dust protection | BP-2P-50-0001 | Dust-proof seal and protective shroud for abrasive environments |
| Food-grade or medical cleanroom | ❌ Standard anodized aluminum not FDA | Custom FDA-grade | 304/316 stainless steel body with FDA 21 CFR 177.2600 compliant seal |
The #1 cause of BP-3P-S06-0001 warranty claims is cracked M5 port bosses. A technician uses a 10 mm wrench and applies 4–5 N·m on an M5 fitting rated for 1.5–2.0 N·m. The aluminum port boss cracks, creating a leak path that cannot be repaired. The technician blames seal quality and requests a replacement — but the root cause was fitting torque. Rule: Hand-tighten M5 push-to-connect fittings only. If using threaded fittings, torque to 1.5–2.0 N·m maximum. The O-ring face seal does the work — the threads only hold the fitting in place.
A machine builder connects a 24V DC solenoid valve (1.8A) and a proximity sensor (0.1A) to the same S06 circuit, thinking the 2A limit is a suggestion. During startup inrush, the solenoid draws 2.4A for 50 ms. The gold-plated brush contact arcs, oxidizing the contact surface. Within 3 months, resistance rises from 0.05 Ω to 2.1 Ω, and the sensor drops out intermittently. Rule: 2A is a hard limit per circuit. For inductive loads (solenoids, relays), budget 30% margin — max 1.4A continuous. Use a separate circuit for each inductive load.
A maintenance team installs BP-3P-S06-0001 on a packaging rotary table and immediately runs it at 0.8 MPa and 150 RPM. The PTFE seal has not bedded into the shaft surface, and the slip ring brushes have not seated into their tracks. Within 2 weeks, air leaks at passage 2, and circuit 4 shows intermittent open-circuit. The team replaces the seal and rewires the circuit, but the same thing happens because they skip the run-in every time. Rule: Run at 0.2 MPa and 50 RPM for 5 minutes before full operation. Test all 6 circuits with a multimeter during run-in. This beds the seal and seats the brushes, extending life from 6 months to 12+ months.
Other rotary joints commonly purchased with BP-3P-S06-0001 — or the models you upgrade to when your application outgrows 3 pneumatic passages or 6 electrical circuits.
Pneumatic-electric models (S-series) integrate a slip ring inside the rotary joint body, adding 6 electrical circuits to the 3 pneumatic passages. This eliminates the need to mount a separate slip ring alongside the rotary joint, saving Ø20–30 mm of axial space and reducing wiring complexity. The pneumatic-only version (BP-3P-0004) is lighter (no slip ring) and lower cost, but requires a separate electrical rotary interface if sensors or solenoids rotate with the table. Both use AL6061 body with PTFE seal and share the same 1 MPa / 200 RPM ratings. All versions are ISO9001 certified. Choose S06 when you need both air and electrical signals through the same rotating center.
Yes — the PTFE + Graphite composite seal and anodized AL6061 body are 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 150 RPM to reduce seal wear and prevent slip ring moisture ingress. The anodized surface provides good corrosion resistance for intermittent water exposure, but continuous immersion or aggressive synthetic coolant may require a PEEK seal option or nickel-plated port treatment. If your application involves deionized water or phosphate ester coolant, contact Begapunk for seal compatibility review before ordering.
The integrated S06 slip ring provides 6 circuits rated at 2A max per circuit, supporting 24V DC or 250V AC. Contact material is gold-plated copper alloy for stable, low-resistance signal transmission. Insulation resistance is ≥500 MΩ at 500V DC, and dielectric strength is 500V AC / 50Hz for 60 seconds. The slip ring is designed for mixed power and signal transmission — you can run solenoid valves (inductive), sensors (low-current), and encoder signals on different circuits simultaneously. Download the 2D PDF drawing for pinout, wire color code, and recommended wire gauge (22–24 AWG). For Ethernet or high-frequency signals, specify a custom capacitive or fiber-optic rotary joint.
Yes — free 3D STEP and IGES files are provided after you send an inquiry. The file includes the AL6061 body geometry, flange bolt pattern, M5 port positions, electrical wire exit orientation, anti-rotation tab geometry, and slip ring envelope dimensions. 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 (SolidWorks, Inventor, Fusion 360, etc.) and we will optimize the file format for your platform.
Upgrade when your application needs more than 3 air passages or 6 electrical circuits. Common triggers: (1) You add a fourth pneumatic function (e.g., blow-off) to a 3-function fixture — BP-4P-30-0001 provides 4 passages plus a Ø30mm hollow bore for cable management. (2) Your electrical circuit count exceeds 6 — specify a custom S12 or S24 slip ring with the same 3-passage body. (3) Your pressure requirement exceeds 1.0 MPa — BP-2P-0002 handles 1.5 MPa with a steel body. (4) Your environment becomes dusty or abrasive — BP-2P-50-0001 has dust-proof protection for the seal and bearing. The upgrade cost is typically $30–$80 more than BP-3P-S06-0001, but it prevents the downtime and rewiring cost of outgrowing an undersized joint.
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.