ESD-controlled gravity flow racks for electrostatic discharge sensitive component staging — engineered with dissipative lane surfaces, continuously grounded aluminum frames, and ANSI/ESD S20.20 and IEC 61340-5-1 compliance for electronics, semiconductor, and precision electronics manufacturing environments.
All lane roller and glide contact surfaces are ESD-dissipative with a surface resistivity of 10^6 to 10^9 ohms per square, providing a controlled charge-bleed path from component containers to the grounded rack frame. Meets ANSI/ESD S20.20 and IEC 61340-5-1 requirements for ESD-sensitive component handling.
Anodized aluminum rack frame with continuous electrical bonding between all frame members provides a low-resistance ground path from lane surface to facility ground. Ground lug at the base frame connects to the facility ESD ground network, ensuring the complete rack system maintains equipotential bonding with the EPA (ESD Protected Area).
Wrist strap snap stud attachment points are integrated at ergonomic operator positions on the front rail of every pick-face lane, allowing operators to maintain personal grounding while picking from the rack without searching for separate ground connection points.
All accessories including kanban card holders, label holders, lane dividers, and end stops are manufactured from ESD-dissipative or ESD-static-dissipative materials with verified surface resistivity. No insulative materials are used in any position where they could create a charge-generating or charge-isolating surface adjacent to ESD-sensitive containers.
Each ESD flow rack is supplied with a resistivity measurement certificate documenting the point-to-point resistance from lane surface to ground lug, confirming compliance with the 10^6 to 10^9 ohm dissipative range required for ANSI/ESD S20.20 EPA equipment certification.
Rear-load, front-pick FIFO lane geometry combined with ESD-controlled lane surfaces ensures that ESD-sensitive components are rotated in first-in-first-out order while maintaining continuous ESD protection throughout the full lane depth — not only at the pick face.
10^6–10^9 Ω/sq; dissipative per ANSI/ESD S20.20
Anodized aluminum; continuous electrical bonding
Ground lug at base; connects to facility ESD ground
Integrated snap studs at pick-face operator position
All ESD-dissipative; no insulative materials used
Resistivity measurement certificate supplied
ANSI/ESD S20.20; IEC 61340-5-1
FIFO rear-load front-pick; ESD controlled full depth
Up to 800kg distributed per bay
ESD-safe component supply racks adjacent to SMT, through-hole, and PCB assembly stations, staging ESD-sensitive ICs, connectors, and passive components in FIFO lot order.
Wafer, die, and packaged semiconductor component staging racks in EPA-controlled fab and assembly environments subject to ANSI/ESD S20.20 or JESD625.
ESD-controlled component flow racks for defence and avionics electronics assembly where ANSI/ESD S20.20 or MIL-STD-1686 ESD control requirements apply.
ESD-safe lane-side component supply for MEMS, sensor, and precision analog electronics assembly lines where sub-microvolt ESD sensitivity requires full EPA rack compliance.
ESD flow rack lane surfaces are manufactured from materials with a surface resistivity of 10^6 to 10^9 ohms per square, the dissipative range specified by ANSI/ESD S20.20 and IEC 61340-5-1 for ESD-sensitive component handling equipment. This range is chosen because it provides a controlled charge-bleed path fast enough to prevent charge accumulation on containers, but slow enough to prevent rapid discharge that could damage sensitive components through current surge.
A ground lug is provided at the base frame of every ESD flow rack. A standard 10mm stud with a locknut accepts a facility ESD ground wire, connecting the rack frame to the facility equipotential bonding system. All internal frame joints are electrically bonded during assembly to ensure continuous low-resistance conductivity from lane surface through the frame to the ground lug. Point-to-point resistance from lane surface to ground lug is measured and certified before shipment.
Yes. ESD flow racks are supplied with a resistivity measurement certificate documenting the measured point-to-point resistance from lane surface to ground lug for each lane. This certificate supports the customer ESD control program coordinator in qualifying the rack as compliant EPA equipment under ANSI/ESD S20.20 Section 8. The rack design meets all materials and grounding requirements specified in TR20.20, the implementation guide for ANSI/ESD S20.20.
Yes. All accessories in the EPA including kanban card holders, label mounts, lane dividers, and end stops must meet ESD material requirements to avoid creating insulative surfaces or charge-generating contact points. Modular Solutions specifies only ESD-dissipative or ESD-static-dissipative materials for all accessories on ESD flow racks. Certifications or surface resistivity data for all accessory materials are available on request.
Snap stud wrist strap attachment points are welded or riveted to the front pick-face rail at ergonomic hand-height for a standing operator at each lane bay. The snap studs are electrically bonded to the rack frame and facility ground through the same low-resistance path as the lane surfaces. Operators connect their wrist strap directly to the rack snap stud, eliminating the need for separate wrist strap ground cords strung across the work area.
Share your ESD sensitivity classification, lane count, container dimensions, and ANSI/ESD S20.20 documentation requirements — we will design a certified ESD flow rack system for your EPA.
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