About King 9 Technology Co., Ltd. - Caster, Castor Wheels Supplier in China

Based in China, King 9 Technology Co., Ltd. lists 11 active products across several categories such as caster wheels, metal products, plastic items and aluminium alloy components. The catalogue includes a PE coated lean tube (KJ‑2010RE), a blue‑color 1.0 mm lean pipe, a lean coated tube for rack systems, an ESD‑coated lean pipe (HS 7306.30, material hot rolled iron with polyethylene coating), a plastic connector for flow racks, an aluminium‑alloy connector (HS 7604.29, primary alloy 6063‑T5), a 60 mm placon roller mounting bracket (HS 7308.90, carbon steel with zinc plating or stainless steel 304), an iron placon roller track (HS 7326.90, mild steel), a 3‑inch swivel caster wheel (HS 8716.90.50, zinc‑plated steel bracket with polyurethane wheel), a fix flat caster wheel (HS 8302.20, polyurethane material) and a break caster (HS 8302.50, carbon‑steel stem with rubber wheel).

The product set combines metal structures with polymer coatings that are typical for industrial rack and handling systems. Materials are identified by HS codes that fall under chapter 73 (iron and steel products), chapter 76 (aluminium articles), chapter 87 (vehicles and parts) and chapter 83 (miscellaneous articles of metal). Each entry specifies the base material and, where applicable, the coating type, providing clear reference points for buyers evaluating compliance and performance.

Product Range and Specialties of King 9 Technology Co., Ltd.

The catalogue covers three main families: coated steel tubes for lean‑rack systems, aluminium‑alloy connectors and a suite of caster wheels. Hot‑rolled iron tubes with PE coating are commonly produced to ASTM A36 specifications, with coating thicknesses ranging from 0.2 mm to 0.5 mm to protect against corrosion and provide ESD dissipation. Aluminium‑alloy connectors listed as 6063‑T5 typically exhibit a tensile strength of about 240 MPa and are supplied in extrusion profiles that match standard rack dimensions (e.g., 30 mm × 30 mm cross‑section). Caster wheels use polyurethane (PU) compounds that are graded by Shore A hardness (usually 85‑95) and load‑rating ranges of 500‑1500 kg, while the swivel models incorporate zinc‑plated steel brackets to resist wear. Standard industry dimensions such as 3‑inch (76 mm) wheel diameter and 60 mm bracket mounting holes are reflected in the product titles.

Trade and Export Information - King 9 Technology Co., Ltd.

China is a major exporter of metal components and handling equipment, and the HS families represented (7306, 7308, 7326, 7604, 8716, 8302) are routinely shipped to Southeast Asian manufacturing hubs, European logistics centres and North‑American distribution networks. Buyers typically request ISO 9001 quality‑management certification, CE marking for safety, and RoHS/REACH compliance for polymer‑coated parts. Packaging for the steel and aluminium items is usually in wooden crates or bulk‑load 20‑ft and 40‑ft containers with internal dunnage to prevent deformation, while caster wheels are often packed in cardboard boxes on pallets. Common Incoterms used by Chinese suppliers include FOB Shanghai and CIF for major ports, with freight forwarding handled by third‑party logistics providers familiar with HS‑code customs clearance procedures.

Sourcing from King 9 Technology Co., Ltd. - Buyer Guidance

When sourcing from King 9 Technology Co., Ltd., request material test certificates that confirm ASTM A36 compliance for the steel tubes and the 6063‑T5 alloy specification for the aluminium connectors. For the caster wheels, ask for a load‑capacity test report and a durometer reading of the polyurethane compound. Verify that the HS code on the commercial invoice matches the product description (e.g., 8716.90.50 for the swivel caster) and that the coating thickness or ESD rating is documented. Samples of 1‑2 units per wheel model and a short length of coated tube are standard practice before confirming a full container order, and most suppliers quote lead times of 15‑30 days after sample approval.

What material grades are used for the aluminium‑alloy connectors?

The connectors are made from aluminium alloy 6063‑T5, which typically provides a tensile strength of about 240 MPa and is supplied in standard extrusion profiles for rack applications.

Which HS code applies to the 3‑inch swivel caster wheel?

The 3‑inch swivel caster wheel is classified under HS 8716.90.50, covering other wheels, parts and accessories of vehicles not specified elsewhere.

What coating is applied to the ESD lean pipe?

The ESD lean pipe combines hot‑rolled iron with a polyethylene (PE) coating that also provides electro‑static discharge protection; the product is listed under HS 7306.30.

Are certification documents required for the plastic connector for flow racks?

Buyers usually request a material safety data sheet (MSDS) and, if available, ISO 9001 compliance evidence for plastic components, even though no specific certification is listed in the supplier’s facts.

What is the typical packaging for the iron placon roller track?

Iron placon roller tracks are commonly packed in wooden crates or bulk containers with internal bracing to avoid bending, and they are shipped in 20‑ft or 40‑ft containers.

What minimum order quantity (MOQ) is expected for caster wheels?

MOQs for caster wheels often start at a single pallet (approximately 200‑300 units) or a full container load, depending on the wheel size and buyer’s logistics preferences.

How long is the lead time for the aluminium‑alloy connector?

Lead times for the aluminium‑alloy connector are typically 2‑4 weeks after order confirmation, assuming the required material certificates are provided.

What test reports should be requested for the PE coated lean tube?

Buyers should request a coating thickness measurement, corrosion resistance test results, and a tensile strength report that references ASTM A36 for the underlying hot‑rolled iron.