Does an ESD chair need a ground cord?

No. It discharges through conductive glides or castors to the ESD floor; on an ordinary floor it has no effect.

Moulded PU has no seams and wipes clean fast; leather has a foam layer so it is softer but can tear on sharp objects.

Is there a chair for 1 m high benches?

Yes: high gas lift + foot ring, or the chrome ring base with built-in footrest.

2 chairs; different bases can be mixed in one order.

ESD Chair with Backrest – PU or Leather Seat

Made to order: delivered and installed as quoted, covered by warranty, no returns. Shipping & return policy

Code: GH-ESD-T · Specification: ESD chair with backrest, swivel, gas-lift height adjustment – PU (M11, M12, M13) or leather seat. Delivery: stocked items in 24–48 hours (Ho Chi Minh City, Binh Duong, Dong Nai), made-to-order items 3–7 working days. Warranty: 12 months.

For operators seated the whole shift inside the EPA: SMT lines, assembly, PCB rework, electronics QC rooms. PRIMEAG offers 4 ranges – PU seat M11, M12, M13 (M13 with armrests or tilting backrest) and leather in blue or black – with 4 base types, glides or castors, and low or high gas lift with foot ring. Seat-to-floor resistance is measured per batch before delivery.

When to choose a chair with backrest? When operators sit and work continuously for hours. The backrest supports the lower back; a backless stool only suits short sitting or alternating sit–stand work (see the ESD stool).

Choose a range

Range	Seat and backrest	Difference	Best for
M11	PU, rounded backrest	Compact, widest base choice (8 types)	Assembly lines, 750 mm benches
M12	PU, rectangular backrest	Wider backrest, firmer support	Full-shift seating, QC, rework
M13	PU, high contoured backrest	Versions with tilting backrest or armrests	Technicians, fixed workstations
Leather	Foam cushion, blue or black leather	Softer than PU; avoid sharp objects	Inspection rooms, electronics labs

Bases, glides and gas lift

Option	Choose when
Cast aluminium 5-star base	One-piece casting, no welds, rigid and easy to keep clean – long service life, clean areas
Chrome-plated steel 5-star base	Bent and welded steel tube, chrome-plated – lower cost than cast aluminium, for general shop-floor use
Welded chrome ring base	Built-in ring as a footrest – high benches, chairs that rarely move
Nylon 5-star base	Light, rust-free, low cost; the ESD version uses conductive nylon
Disc base	No castors, does not roll – counters, high benches, floors kept clean
Glides (fixed)	Chair stays in one position, no dust dragged – conductive on ESD versions
Castors	Operator needs to roll back, turn and change position – conductive on ESD versions
Low gas lift	Seated benches about 750 mm high
High gas lift + foot ring	Sit–stand benches 900–1,000 mm; knees bent about 90°, feet supported

Models available

PU seat – M11

PU seat – M12

PU seat – M13 (armrests, tilting backrest)

Leather, blue and black

Black, chrome steel 5-star base, castors

Black, chrome steel 5-star base + foot ring, castors

Optional parts

Choose by workstation

Bench about 750 mm, seated all shift → M11 or M12, low gas lift, castors.
Sit–stand bench 900–1,000 mm → high gas lift + foot ring (M11, M12, M13).
Cleanroom, chair stays in place → fixed glides, no dust dragged.
Rework technicians who rest arms while using a microscope → M13 with armrests.

How an ESD chair works

An ESD chair does not “absorb” static. It provides a continuous path from the seated person to the ESD floor: conductive seat → seat plate → gas lift → base → conductive glides or castors → grounded ESD floor or mat. One insulating link – a plastic piston cover, an ordinary castor, a chair placed on a tiled floor – breaks the path. That is why PRIMEAG measures seat-to-floor resistance per batch before delivery.

Stage	Method	Measuring point	Limit
Product qualification	ANSI/ESD STM12.1	Seat, backrest, armrests, foot ring → ground	Rg < 1×10⁹ Ω (ANSI/ESD S20.20)
Periodic verification	ESD TR53	One point on the seat → ground	Rg < 1×10⁹ Ω

A chair does not replace the wrist strap. According to ESDA, seated operators handling ESD-sensitive devices must still be grounded with an ESD wrist strap. The chair only works when it stands on an ESD PVC floor or a grounded ESD mat.

Maintenance

Wipe with IPA or ESD cleaner; never use silicone or wax polishes – they leave an insulating film.
No fabric cushions, covers or plastic bags on the seat.
Replace worn glides or castors with the same conductive type and re-measure seat-to-ground resistance.

FAQ

Does an ESD chair need a ground cord? — No. It discharges through conductive glides or castors to the ESD floor; on an ordinary floor it has no effect.
PU or leather? — Moulded PU has no seams and wipes clean fast; leather has a foam layer so it is softer but can tear on sharp objects.
Is there a chair for 1 m high benches? — Yes: high gas lift + foot ring, or the chrome ring base with built-in footrest.
Minimum order? — 2 chairs; different bases can be mixed in one order.

Technical references

Price: from 940,000 VND (excl. 8% VAT).

REQUEST A QUOTE: send quantity, bench height and the options you chose (or a photo from this page) — PRIMEAG quotes within 30 minutes.

Hotline/Zalo +84 906 108 292 · info@primeag.vn

Updated 17/10/2026 — PRIMEAG engineering team.

Request a quote

Updated: 2026-10-24

Giao tận nhà máy TP.HCM, Bình Dương, Đồng Nai, Long An, Tây Ninh · Kèm biên bản đo điện trở ESD theo lô · Hotline 0906 108 292

ESD Chair with Backrest