RT-860-5 Diaper Permeability Tester | Absorption, Rewet & Leakage
RT-860-5 Automatic Diaper Permeability Tester
One machine. Five independent stations. Complete absorption, rewet, and leakage testing for baby diapers, adult incontinence products, and sanitary napkins — fully automated.
Product Details：
Why your lab needs more than a manual test
If you are still running diaper absorption tests station-by-station —
- Your throughput is capped by operator availability.
- Results drift between runs because pouring speed, timing, and pressure vary by hand.
- You need separate setups for infant diapers (40–80 mL) and adult products (100–150 mL).
- When a customer challenges your data, manual records are hard to defend.
The RT-860-5 solves all four problems in a single bench-top system.
What Makes the RT-860-5 Different
5 Stations. 5 Pumps. Zero Waiting.
Each station has its own peristaltic pump, electrode, and weight block — so you can test infant diapers, adult briefs, and sanitary pads simultaneously. No reconfiguration between runs.
Fully Automated — from liquid dispensing to final report
Press start, and the machine handles everything:
- Dispenses the exact volume at the prescribed flow rate
- Applies constant pressure during absorption
- Times the absorption event to 0.01 s
- Weighs the rewet filter paper on the integrated 0.01 g balance
- Calculates averages, standard deviations, and coefficient of variation
- Prints the report on the built-in thermal printer
No manual intervention. No operator-to-operator variability.
Built for high-throughput QC labs
- Platinum electrodes — fast response, corrosion-resistant, built to last years, not months
- Stepper motors + ball screw drives — repeatable stroke control, no drift
- 316L stainless steel liquid tank — heated, with level gauge; handles saline test solutions without corrosion
- Buzzer alert — notifies the operator when a test cycle completes
Technical Highlights
| Feature | Why it matters |
|---|---|
| 5 independent peristaltic pumps | Different flow rates & volumes per station; no cross-contamination |
| Touch screen HMI (EN/CN) | No training needed; toggle language in one tap |
| Integrated 0.01 g balance | Direct rewet & leakage calculation — no external scale |
| Built-in thermal printer | Instant hard-copy results for batch records |
| PC analysis software | Bi-directional PC operation; export to Excel/LIMS |
| Modular sample holders | U-shaped (infant) & arc-shaped (adult) bases included |
Standards & Compliance
GB/T 28004.1-2021 & GB/T 28004.2-2021 Chinese national standards for disposable diapers (infant and adult). The RT-860-5 is purpose-built to execute every GB/T 28004 permeability test procedure.
Testing methodology aligned with:
- ISO 11948-1 — Urine-absorbing aids — Part 1: Whole-product testing
- NWSP 070.9 — Nonwoven standard test methods — Absorption capacity
While GB/T 28004 does not have a single direct ISO equivalent, the parameters measured (absorption speed, rewet amount, and leakage volume) are the same core metrics required by ISO 11948-1 and NWSP 070.9. Your test reports will align with the expectations of international buyers and third-party auditors.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Test stations | 5 (independent) |
| Timing precision | 0.01 s |
| Liquid dispensing deviation | ±2 mL |
| Dispensing flow rate | 200–800 mL/min |
| Tank capacity | 2 L (316L stainless steel, heated) |
| Infant dispensing volume | 40 / 60 / 80 mL (±2 mL) |
| Adult dispensing volume | 100 / 150 mL (±2 mL) |
| Balance precision | 0.01 g (300 g capacity) |
| Pressure (dispensing) | 2.0 ± 0.2 kPa |
| Pressure (absorption) | 4.0 ± 0.2 kPa |
| Power | AC 220V, 50 Hz, 1000W |
| Dimensions (L × W × H) | 1720 × 760 × 830 mm |
| Weight | 290 kg |
Full datasheet available on request. Includes detailed sample holder dimensions by model (M1–M3 for infant; M1–M2 for adult).
Frequently Asked Questions
Q: Does the RT-860-5 test both baby and adult diapers? Yes. The machine ships with U-shaped sample holders for infant products (B1–B3 sizes) and an arc-shaped holder for adult products. You can test infant diapers, adult incontinence briefs, sanitary napkins, and infant/adult diaper pads — all on the same platform, with independent volume and flow rate settings per station.
Q: What exactly does it measure? Three metrics per sample: (1) pressurized absorption speed — how fast liquid enters the core under weight, (2) rewet amount — how much liquid comes back out under pressure, and (3) leakage amount — how much liquid escapes the product entirely.
Q: Can it connect to a PC or LIMS? Yes. The included PC analysis software supports bi-directional operation — you can control the tester from a PC, export test data as CSV/Excel, and integrate with your lab information management system.
Q: What test liquid should I use? The standard specifies 0.9% saline solution (NaCl). The 316L stainless steel tank is corrosion-resistant for saline testing.
Q: How long does one test take? Cycle time depends on sample type, but the automated flow means one operator can run 5 samples concurrently. You are no longer bottlenecked by manual pouring and manual timing.
Q: Do you provide installation and training? Yes. We offer remote video setup guidance and on-site commissioning upon request. Every machine ships with a detailed operation manual in English.
Shipping & Warranty
- Packaging: Export-grade plywood crate with moisture-proof lining
- Lead time: Contact us for current availability — typical 15–25 working days
- Warranty: 36 months on mainframe; 12 months on consumable parts (electrodes, peristaltic pump tubing)
- After-sales: Lifetime technical support via email, video call, or on-site service
Ready to upgrade your diaper testing lab?
The RT-860-5 replaces multiple manual setups with one automated, 5-station platform. Get consistent, auditable results across infant and adult product lines — without operator dependency.
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