Pneumatic Horizontal Heavy-Duty Padding Mangle

Overview

The SDLATLAS D394B Pneumatic Horizontal Heavy-Duty Padding Mangle is an engineered textile processing instrument designed for precise, repeatable wet pickup control in dyeing, padding, and impregnation processes. Unlike vertical mangles, its horizontal configuration provides enhanced stability during high-load operations and facilitates seamless integration into continuous laboratory-scale wet processing lines. The unit operates on the principle of controlled nip pressure between two counter-rotating rollers—typically a hard top roller and a compliant bottom roller—to govern liquor transfer from a reservoir trough into fabric substrates. This mechanism enables consistent add-on percentages (e.g., 60–120% wet pick-up) across woven, knitted, and nonwoven textiles, supporting R&D, quality assurance, and process validation under ISO 105-X12, AATCC 8, and ISO 8770 test protocols.

Key Features

• Robust horizontal frame construction with reinforced steel baseplate, optimized for floor-mounted operation and long-term mechanical stability under repeated pneumatic loading cycles.
• Pneumatically actuated load system delivering precise, stepless pressure adjustment (range: 0–5 bar typical, calibrated via integrated pressure gauge), ensuring reproducible nip force independent of operator input.
• Fixed-speed drive train operating at 10 rpm ± 0.2 rpm (non-variable by default; optional frequency-inverter upgrade available for speed modulation between 2–20 rpm).
• 450 mm working width and 125 mm roller diameter accommodate standard lab-scale fabric swatches (up to 50 cm wide) while maintaining uniform pressure distribution across the full nip zone.
• Bottom roller fabricated from high-compliance elastomer with Shore A hardness of 70 ± 2—validated per ASTM D2240—to balance penetration depth and surface integrity for varied fabric grammages (80–400 g/m²).
• Integrated safety interlocks including emergency stop button, roller guard with microswitch activation, and pneumatic circuit cut-off upon door opening—compliant with EN ISO 13857 and IEC 60204-1.

Sample Compatibility & Compliance

The D394B accommodates flat textile specimens up to 450 mm in width and 2 mm in thickness, including cotton, polyester, blends, technical textiles, and coated fabrics. Its open trough design supports aqueous, solvent-based, and reactive dye baths without residue buildup. All wetted components—including trough, roller bearings, and sealing gaskets—are constructed from corrosion-resistant stainless steel (AISI 316) and EPDM elastomers, meeting FDA 21 CFR 177.2600 requirements for incidental food-contact materials where applicable. The system conforms to textile testing standards including ISO 105-X12 (colour fastness to rubbing), AATCC Test Method 30 (antimicrobial activity), and ISO 8770 (determination of liquor ratio). Documentation packages include factory calibration records traceable to NIST-certified torque and pressure standards.

Software & Data Management

While the base D394B operates as a stand-alone electromechanical instrument, optional digital interface modules support data logging via RS-485 or USB-C output. When paired with SDLATLAS LabLink™ v3.2 software (sold separately), users can record real-time parameters—including applied air pressure, elapsed run time, and cycle count—with timestamped CSV export. Audit trails comply with GLP and GMP documentation requirements (21 CFR Part 11-ready when deployed with user authentication and electronic signature modules). Calibration history, maintenance logs, and operator access permissions are centrally managed within the software environment.

Applications

• Routine wet pickup optimization for reactive, vat, and acid dye systems prior to fixation or drying.
• Standardized padding of flame-retardant, water-repellent, or antimicrobial finishes per ISO 14115 and AATCC 110.
• Preparation of specimens for colorfastness testing (ISO 105-C06, ISO 105-E01) requiring defined liquor ratios.
• Process correlation studies between lab-scale mangle settings and industrial pad-dry-cure lines.
• Validation of new fabric architectures (e.g., 3D knits, laminates) for uniform chemical penetration under controlled mechanical stress.

FAQ

Is variable roller speed available as a factory option?
Yes—model D394B-VS includes a 0.75 kW inverter-driven motor enabling speed adjustment from 2 to 20 rpm with ±0.1 rpm resolution.
Can the unit be supplied with an integrated air compressor?
SDLATLAS offers the optional AC-1200 compact oil-free compressor (1.2 m³/h, 8 bar max) with moisture separator and pressure regulator, pre-piped and tested for direct connection.
What maintenance intervals are recommended for the pneumatic system?
Quarterly inspection of air filters, lubricator oil level (if used), and pressure regulator calibration is advised; annual replacement of O-rings in cylinder seals per maintenance manual TM-D394B Rev. 4.
Does the D394B meet CE marking requirements for machinery placed on the EU market?
Yes—the unit carries CE marking under Directive 2006/42/EC (Machinery Directive) and includes full EC Declaration of Conformity with harmonized standards EN ISO 12100, EN 60204-1, and EN ISO 13857.
How is fabric tension managed during padding to prevent distortion?
The horizontal layout inherently minimizes gravitational sag; optional inlet/outlet guide rollers with adjustable lateral alignment and light spring-loaded tensioning arms (accessory kit TG-450) maintain substrate planarity without stretching.