Lean Pipe & Aluminium Profile Parts

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

Product code: LP-PARTS · Specification: Lean pipe & aluminium profile parts (pipes, joints, bolts, levelling feet)

Lean Pipe & Aluminum Profile Components

Common specifications: cream/black pipe, D-S1/S2/S3/S4 joints, M6/M8 T-nuts, levelling feet.
Delivery: stocked items are delivered in 24–48 hours (Ho Chi Minh City, Binh Duong, Dong Nai); made-to-order items 3–7 working days; availability is confirmed with the quotation.

PRIMEAG sells parts individually so customers can extend, repair or re-layout the benches and racks they already own: one technician and a 5 mm hex key at the factory are all it takes. Φ28 steel pipe, 0.8/1.0 mm wall, ABS plastic-coated (cream, black, blue, white; conductive black ESD version) in 4 m lengths or cut to size; DND metal joints D-S1 (2-way), D-S2 (3-way), D-S3 (4-way), D-S4 (5-way), D-S12B (handle), D-S10 (hinge), equivalent HJ-1…12 joints, PJ plastic joints; roller track in plastic/aluminium for flow racks; bolts M6×30, T-nuts, nuts; levelling feet M8–M12, Φ40–60; end caps PJ110A; handles; aluminium corner brackets 3030/4040, T-nuts, hex screws; pegboards, hanging bars; castors (LP-WHEEL).

Group	Code / specification	Packing
Φ28 plastic-coated pipe	0.8/1.0 mm; cream, black, blue, white, ESD; 4 m	Per length; cut to order
DND metal joints	D-S1, S2, S3, S4, S5, S10, S12B	100 pcs/carton
HJ joints	HJ-1 → HJ-12	100/carton
PJ plastic joints	PJ-101 → PJ-116	100/bag
Roller track	Plastic, 33 mm pitch / aluminium Φ36, 4 m	Per length
Bolts, T-nuts	M6 × 30, M6/M8 T-nuts, nuts, hex screws	100/bag
Levelling feet	M8 / M10 / M12, base Φ40–60, adjustment ±20 mm (depending on model)	4/bag
End caps, handles	PJ110A; D-S12B	100/bag
Aluminium corner brackets	3030 / 4040, with cover	100/bag

MOQ 1 length / 1 bag; assembly drawing and joint count sheet supplied on request.

FAQ
– Pipe wall thickness? — 0.8–1.0 mm steel wall; for racks loaded >100 kg/level and heavy trolleys, add a mid post and cross bracing to shorten the span.
– Can DND and HJ joints be mixed? — Both are Φ28, so they are interchangeable; only the shape differs.
– How do I work out the number of joints? — Send the bench/rack dimensions and PRIMEAG will send a BOM and cutting list free of charge.

Plastic-coated pipe: what lies beneath the coating

According to manufacturers of the original Japanese pipe-and-joint systems (Creform/Yazaki), the pipe is rolled from cold-rolled steel, the outer plastic layer is bonded with adhesive to the steel so it does not separate, and the inside is given an anti-corrosion coating. The standard Yazaki pipe in the MISUMI catalogue has a diameter of 27.6 mm, a 0.7 mm steel wall, weighs 520 g/m, and its specification table lists a maximum working load of 686 N (70 kgf). PRIMEAG pipe has a 0.8/1.0 mm wall, stiffer than the common 0.7 mm type.

Φ28: used for benches, racks, trolleys and flow racks.
Φ32: used by manufacturers where more stiffness is needed, as rollers, or sleeved over 28 mm pipe to form telescopic mechanisms.
Φ42: heavy structures, used with 42 joints and 42/28 adapter joints.
ESD pipe: manufacturers offer it in all sizes for benches, flow racks and trolleys inside the EPA.

Φ28 plastic-coated lean pipe in beige, grey and ESD black – PRIMEAG — Φ28 plastic-coated lean pipe: beige, grey, ESD black — large quantities

Metal joints and plastic joints

Metal joints: according to Creform, the joints are made from heavy cold-rolled steel (12 gauge) with a black anti-rust paint finish; the nickel-plated version is used for ESD structures together with ESD pipe. Assembly and disassembly need only a hex key.
DND (D-S…) and HJ joints are both Φ28, so they can be mixed in one structure, but it is better to use a single system for each sub-assembly so that the pipe cutting allowances stay consistent.
PJ plastic joints: light and inexpensive, used for light racks, partitions and trays; they do not replace metal joints at main load-bearing points or where vibration occurs when a trolley is pushed.

DND Φ28 lean pipe metal joints, zinc-plated and black-painted: D-S1, D-S4 joints, 3-way corner joint — DND Φ28 metal joints (Korea), zinc-plated and black-painted versions — D-S1, D-S4 joints and 3-way corner joint at the PRIMEAG warehouse

Correct assembly practice

Calculate cut lengths from the BOM: pipe length = centre-to-centre dimension minus the portion inserted into the joints; use one joint system within one frame.
Cut the pipe with a pipe cutter or saw, and deburr the steel and plastic at the cut edge so the joint fits snugly.
Assemble the whole frame loosely, square and level it on a flat surface, and only then tighten each joint in turn.
Tighten just enough: over-tightening dents the plastic coating and strips the bolt thread; under-tightening lets the frame twist and the joints gradually slip.
Cap the pipe ends with PJ110A end caps: they keep dust and water out of the pipe bore and cover the sharp steel edge.
Check and re-tighten after the first month and after every structural change.

PB-SE double clamp joint holding 2 parallel lean pipes, property class 8.8 bolt — PB-SE double clamp joint holding 2 parallel Φ28 pipes, tightened with a property class 8.8 bolt

ESD structures: ESD pipe alone is not enough

Use conductive metal joints between ESD pipes to get a continuous path; plastic joints break the path.
The frame must be bonded to the common grounding point of the bench; the bench top and ESD mat must still be grounded separately because components touch the work surface, not the frame.
After assembly, measure the resistance from points on the frame to the grounding point with a surface resistance meter.

Prefer not to assemble it yourself? PRIMEAG builds complete lean pipe racks for factories in Binh Duong – Dong Nai to your drawing, load-tested at our workshop; for SMT lines, see lean pipe racks and trolleys for SMT workshops.

Φ28 plastic-coated lean pipe in white, grey, beige, blue and black – PRIMEAG

Measuring the surface resistance of black ESD lean pipe, indicator in the dissipative range 10^7 Ω – PRIMEAG — Testing black ESD lean pipe with a surface resistance meter: indicator at 10⁷ Ω, dissipative range

Flow rack roller track with white and black plastic rollers on a galvanised steel rail – PRIMEAG — Roller track for FIFO flow racks: white / black plastic rollers on a galvanised steel rail

Aluminium profile parts

T-nuts slide or drop into the slot, allowing brackets, handles or hangers to be added at any position along the profile.
Corner brackets with covers hide sharp edges and keep out dust; use the full number of brackets per joint as per the drawing so the frame does not twist.
Do not mix T-nuts or corner brackets from profile systems with a different slot size — order according to the exact profile code in use.

Common mistakes

Using thin-wall pipe for heavily loaded racks or trolleys carrying moulds — the frame sags and joints slip.
Leaving pipe ends uncapped and exposing the pipe to water for long periods: rust spreads inwards from the cut edge.
Wiping the pipe with acetone or thinner — the plastic coating turns dull and cracks.
Placing plastic-coated pipe close to heat sources (ovens, welding machines, drying lamps).
Changing the structure without updating the drawing and BOM — the next modification ends up short of joints or with wrongly cut pipe.

Technical references

Price: from 4,000 VND (excl. 8% VAT).

REQUEST A QUOTE: send the quantity and specifications you need — PRIMEAG quotes within 30 minutes.

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

Written by the PRIMEAG engineering team.

Request a quote

Updated: 2026-10-28

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