OTR Special-Purpose Mining Wheel Three-Piece Rim OEM Color Custom Heavy Duty High Load Bearing 21-11.25/1.7 Fits 16.00-21 Tire

Product Description - 21-11.25/1.7 Three-Piece Steel Rim

Short Description
Flat-base three-piece steel rim 21-11.25/1.7, tube type, for 16.00-21 bias off-road tires. Custom PCD, offset and RAL color. OEM for mining dump trucks and heavy earthmoving equipment.
Full Description
Built for Off-Road Mines, Not Highways
The 21-11.25/1.7 is a flat-base, multi-piece steel rim engineered for 16.00-21 bias off-road tires in重载 mining and earthmoving operations. Unlike deep-base tubeless rims used on highway trucks, this rim is designed around the realities of mine-site work: heavy payloads, unpaved haul roads, frequent tire changes, and the need to get a wheel back on a machine without waiting for a press-equipped workshop.
Its three-piece construction - rim body, bead seat band and lock ring - allows the tire to be mounted and demounted in the field with standard tools. The 5° taper bead seat holds the bead securely under load and deflation cycles, while the reinforced flange resists the impact damage that commonly occurs on rocky grades.

 

Manufactured at our Tangyin production base in Anyang, Henan, this rim is formed from Q235B or Q355B structural steel (custom grades available for large-volume orders) and built through rolling, welding, machining and balancing. Key process controls include:
Weld seam inspection: 100% non-destructive testing on the rim body weld; no visible undercut or porosity
Dimensional check: diameter runout, width and bead seat profile verified against drawing before finishing
Surface finish: shot blasting + primer as standard; top coat available in any RAL color with customer logo/stencil
Traceability: heat number and batch recorded; inspection report supplied on request
We hold ISO 9001 (since 2005) and IATF 16949 (since 2019) certifications, and were recognized as a National High-Tech Enterprise in 2020 with 20+ self-developed patents.

Item Specification
Rim Size 21-11.25/1.7
Type Flat base, multi-piece (3-piece), tube type
Nominal Diameter 21 inch
Rim Width 11.25 inch
Flange Height 1.7 inch
Bead Seat Angle 5°
Matching Tire 16.00-21 bias off-road tire
Material Q235B / Q355B (custom grade for large volume)
Finish Black primer standard; RAL color custom
PCD [to be confirmed] mm
Center Bore [to be confirmed] mm
Offset [to be confirmed] mm
Bolt Holes [to be confirmed]
Max Load / Inflation [to be confirmed per drawing]
Application Wide-body mining dump truck, heavy tipper, earthmoving & special vehicles
Standard Manufactured per customer drawing / GB/T 2883 & ISO 4250 series
MOQ 1 piece for custom orders; tiered pricing for volume

Wide-body mining dump trucks and off-road haul trucks operating with 16.00-21 tires
Heavy-duty tippers on construction sites and quarry haul roads
Earthmoving machinery including loaders, graders and scrapers where this rim size is specified
Special-purpose vehicles: crane carriers, concrete pump trucks, oilfield and drilling rigs
Note: Fitment must be confirmed by your tire sidewall specification, hub drawing or a physical sample. Please send us a photo of your existing tire and wheel - we will verify the match before production.

This rim is supplied as an OEM / non-standard item. Beyond the base size, we can adjust:
PCD, bolt hole count & size, center bore and offset to match your existing wheel disc or hub
Lock ring and bead seat band profile to your original part
Flange height and valve hole position
Steel grade and wall thickness for higher load or harsher terrain
Paint color and marking to your brand standard
Full wheel assembly (rim + disc welded) if required
Orders are produced from your drawing, sample or technical parameters. Engineering confirmation is completed before tooling, and first-article dimensions are reported for approval.

Correct type for the job - tube-type multi-piece design matched to bias off-road tires, not a highway rim repurposed for mines
Field-serviceable - three-piece build means tires can be changed on site
Spec-accurate - PCD/offset made to drawing, avoiding the "looks right but won't bolt on" problem
Factory direct - 400,000 rim sets annual capacity, volume pricing, export documentation provided
Proven export record - shipped to Indonesia, South America, Middle East, Africa, Central Asia and Russia
Lead Time & Terms
Production lead time for custom engineering rims: 22 working days from receipt of advance payment and written confirmation of final drawings (Chinese public holidays excluded)
Shipment arranged within 7 working days after production completion
Ocean freight: approx. 25–35 calendar days from major Chinese ports
Payment: 100% T/T in advance for custom orders; 70% deposit + 30% before shipment for standard products

Q: Is the 21-11.25/1.7 a tubeless rim?
A: No. It is a tube-type (with inner tube) multi-piece rim designed for 16.00-21 bias tires. If you require a tubeless deep-base rim, please refer to our 22.5 / 25.0 series.
Q: What vehicles use 21-11.25/1.7?
A: It is typically fitted to off-road mining dump trucks, heavy tippers and earthmoving machines that run 16.00-21 tires. Because the same rim size can appear on different hubs, we always confirm fitment against your drawing or a photo of your current wheel.
Q: Can you supply just the rim body, or do I need the full set?
A: Both. We can supply the complete three-piece set (rim body + bead seat band + lock ring) or individual components as spares. Lock rings and seat bands are also sold separately.
Q: Do you weld the rim to a disc?
A: Yes. If you provide the disc drawing or sample, we can deliver a complete welded wheel assembly, saving you the matching work on your end.
Q: What's the MOQ?
A: Custom orders start from 1 piece. Volume orders receive tiered pricing.

SEO Elements
Title tag: 21-11.25/1.7 Three-Piece Steel Rim – Fits 16.00-21 Tire | Anqiang
H1: 21-11.25/1.7 OTR Multi-Piece Steel Rim for 16.00-21 Tire
Meta Description: Flat-base three-piece steel rim 21-11.25/1.7, tube type, for 16.00-21 bias tires. Custom PCD, offset & RAL color. OEM for mining dump trucks. Get a quote.
URL slug: /product/21-11.25-1.7-three-piece-steel-rim/
Image alt: 21-11.25/1.7 three-piece flat base steel rim for 16.00-21 tire, bead seat band and lock ring detail, rim weld seam inspection
Internal link anchors: "21-11.25/1.7 mining truck rim", "16.00-21 tire rim", "OTR multi-piece steel rims"
Schema: Product with name, brand (Anqiang), material, size, and offers with MOQ