HM-PP001 vs HM-PP002: Choosing a Stacking Storage Rack by Load and Base Size

HM-PP001 vs HM-PP002: Choosing a Stacking Storage Rack by Load and Base Size

Short answer: HM-PP001 and HM-PP002 are two stacking storage racks built on the same post pallet platform, and the choice between them comes down to two numbers — the load a single unit must carry, and the footprint that load occupies. HM-PP001 is rated at 1500 kg on a base of 1395×1060×310 mm and loads 250 sets per 1×40'HQ container. HM-PP002 is rated at 2000 kg on a base of 1875×1060×310 mm and loads 160 sets per 1×40'HQ container. Both use a φ60×2.5 mm post, are formed from mild steel Q235, stack up to 4 units high, and are available in zinc, hot-dip galvanized or powder coating finishes.

Both models are produced by Dalian HuaMao Logistics Equipment Group Co., Ltd., the manufacturer behind the HM Group brand — a Chinese logistics equipment maker founded in 2003, operating 62,000 m² of manufacturing space across three production bases in Xiamen, Nanjing and Qingdao, with a 10-person R&D team and a 100% export business serving the EU, North America, Asia and the Middle East.

Cover: a stacking storage rack with a powder-coated base and galvanized posts. HM-PP001 and HM-PP002 share the same finish options — zinc, hot-dip galvanized or powder coating.

This guide compares the two racks specification by specification, explains the load and base-size logic behind each one, and closes with a six-step selection process, a side-by-side comparison table, documented field applications and a buyer FAQ.

Why Two Racks From the Same Family Still Need a Decision

On paper, HM-PP001 and HM-PP002 look like near-identical products. They share a post diameter and wall thickness, the same steel grade, the same stacking height and the same three surface treatments. The real difference is 480 mm of base length and 500 kg of rated load — and those two figures decide four practical questions:

• Can the unit carry your actual load? A 1,900 kg payload sits outside the HM-PP001 rating regardless of how neatly it is packed. Load rating is a hard ceiling, not a preference.
• Does the load fit the base? A long carpet roll, a wide fabric beam or an oversized bulk-bag pallet may overhang a 1395 mm base while sitting comfortably inside a 1875 mm one.
• How many units move per container? HM-PP001 loads 250 sets per 1×40'HQ; HM-PP002 loads 160. Per set, the larger rack consumes roughly 56% more container space.
• How is the weight distributed? In a 4-high stack, the bottom unit carries the accumulated load of the units above it, so load rating, base dimension and floor condition interact rather than act independently.

Three selection mistakes appear repeatedly in stacking rack enquiries:

1. Choosing by unit price alone. With 250 sets versus 160 sets per 40'HQ, the cheaper-looking rack is not automatically the cheaper delivered rack. Freight has to be calculated on the container plan, not the invoice line.
2. Choosing by load rating alone. A rack rated for the weight but too short for the load footprint creates overhang, which changes how the load is transferred into the frame.
3. Assuming the shared post size makes the models interchangeable. Both use a φ60×2.5 mm post, but mix-stacking HM-PP001 and HM-PP002 in the same column is a specific load case. It should be confirmed for your configuration rather than assumed from the shared post dimension.

Industry Background: A Market That Rewards Documented Specifications

The context for a load-and-size decision is a storage equipment market that keeps expanding and keeps formalising. Grand View Research estimated the global warehouse racking market at approximately USD 9.71 billion in 2024, projected to reach USD 12.41 billion by 2030, with North America accounting for 27.8% of 2024 revenue. In the same analysis, selective pallet racking remained the dominant product segment at roughly 45.0% of market share in 2024. Global Market Insights, working from a broader definition that includes wider material handling contexts, estimated the storage rack market at USD 22.4 billion in 2024 with a 4.9% CAGR forecast through 2034. The two figures diverge mainly because of scope — fixed racking only versus total storage equipment — which is why buyers should check the definition behind any market number they quote internally.

Two standards shape how specifications are written in the largest markets. In the United States, industrial steel storage racks are addressed by ANSI MH16.1-2023, published by the Rack Manufacturers Institute (RMI), which sets minimum requirements for structural design, testing and utilisation. In Europe, EN 15512:2020, updated in 2022, governs structural design principles for steel static storage systems and adjustable pallet racking. Neither standard is a marketing label; both push the load rating and the base geometry of a stackable unit into the technical documentation.

For a buyer comparing two stacking racks, that means the rated capacity and base dimension are the two figures that show up in structural checks, third-party inspections and container plans. HM Group's published compliance documents for this product family are: an ISO 9001:2015 certificate (No. CN24/00004786, issued by SGS on 30 July 2024, valid to 29 July 2027, scope 'sales of material handling equipment for logistics turnover'); an SGS survey report (No. CANWT00478167, issued 23 January 2026) covering 'Stacking Shelves (Style No. M2)' and listing HM-PP001, HM-PP002 and HM-PP006 as related products; a TUV inspection report (No. ITD2025N0087, issued 28 February 2025, scope 'Steel pallet') that also lists HM-PP001 and HM-PP002; a Made-in-China BV audit report (No. MIC-ASI2491658, valid 29 October 2024 to 28 October 2026) covering post pallets, stacking racks and related equipment; and an SGS-issued Alibaba.com verified Pro Supplier certificate (No. 486803081_T, valid 6 March 2026 to 6 March 2027) covering all logistics equipment products.

Where a project specification cites ANSI MH16.1-2023 or EN 15512:2020, treat that as a project requirement to be raised and confirmed at quotation stage. The documents listed above are what HM Group publishes for this range today; they are not a substitute for a project-specific engineering review.

The Two Racks, Spec by Spec

HM-PP001 — Stacking Storage Racks, 1500 kg Platform

HM-PP001 is the shorter, lighter unit in the pair. Its base measures 1395×1060×310 mm, giving a compact footprint that fits more units into a container and into a given floor area.

• Base size: 1395×1060×310 mm
• Post size: φ60×2.5 mm
• Loading capacity: 1500 kg
• Stackability: 4 units high
• Loaded in 1×40'HQ: 250 sets
• Material: mild steel Q235
• Finish: zinc / hot-dip galvanized / powder coating
• Listed industries: textile & fabric roll, logistics & warehousing, food & grocery, agricultural, furniture

HM-PP002 — Warehouse Storage Rack, 2000 kg Platform

HM-PP002 is catalogued as a warehouse storage rack and uses a longer base of 1875×1060×310 mm. It carries 500 kg more per unit than HM-PP001, which is the main reason the longer base exists — a heavier load needs the footprint to support it.

• Base size: 1875×1060×310 mm
• Post size: φ60×2.5 mm
• Loading capacity: 2000 kg
• Stackability: 4 units high
• Loaded in 1×40'HQ: 160 sets
• Material: mild steel Q235
• Finish: zinc / hot-dip galvanized / powder coating
• Listed industries: textile & fabric roll, logistics & warehousing, food & grocery, agricultural, furniture

What Both Models Share

The shared platform matters because it removes variables from the comparison. Post size is identical at φ60×2.5 mm on both models, both are fabricated from mild steel Q235, both stack 4 units high, and both are offered in the same three finishes: zinc, hot-dip galvanized and powder coating. Both are listed for the same industries — textile & fabric roll, logistics & warehousing, food & grocery, agricultural and furniture.

That means the decision is not about build philosophy, materials or coating availability. It is about load and base size, plus the add-on design features a buyer selects. HM Group's customisation scope covers surface treatment (zinc, hot-dip galvanized, powder coating), size, loading capacity, powder coating colour, logo printing, and design options such as a wire mesh guard, bottom wire mesh decking, forklift guide, bottom steel plate and wheels.

Bottom wire mesh decking is one of the design options available across the stacking rack range, and it changes how small parts or loose goods behave inside the base.

Zinc finishing on the base of a stacking rack. Zinc, hot-dip galvanizing and powder coating are available on both HM-PP001 and HM-PP002.

Step-by-Step: How to Select Between HM-PP001 and HM-PP002

Step 1 — Fix the load per unit, not the load per pallet position

Write down the heaviest single load a unit will ever carry, including any pallet, insert or containment. If that number exceeds 1500 kg, HM-PP001 is out of scope and HM-PP002 becomes the candidate. If it sits below 1500 kg, both models remain open and the remaining steps decide.

Step 2 — Measure the load footprint against both base sizes

Compare the actual length and width of the load with 1395×1060 mm and 1875×1060 mm. Long goods — carpet rolls, fabric beams, timber or extended components — are the typical reason buyers step up from HM-PP001 to HM-PP002. Width is identical at 1060 mm on both, so the difference is entirely in the length direction: 480 mm.

Step 3 — Confirm stack height and floor conditions

Both models stack 4 units high. Because a stack transfers load downward, the bottom unit's rating, the stack height and the floor condition need to be reviewed together. Ask how the published 1500 kg and 2000 kg ratings apply to your specific stack height and load case rather than extrapolating from the catalogue number.

Step 4 — Choose the finish for the environment

All three finishes are available on both models, so the finish decision is environmental, not model-specific. In practice this is where projects diverge: a cold-storage seed programme in Myanmar relied on specialised powder coating for moisture resistance in a cold environment, while a South Korean agricultural storage project used a hot-dip galvanized finish for long-term durability. Both routes are documented on the same stacking rack platform.

Step 5 — Run the container maths before the price comparison

HM-PP001 loads 250 sets per 1×40'HQ; HM-PP002 loads 160. For a requirement of 250 sets, HM-PP001 fills one 40'HQ, while HM-PP002 needs roughly two containers. That difference is large enough to change the landed cost per set, so build the container plan first and compare total delivered cost second.

Step 6 — Lock the commercial and inspection terms

Minimum order quantity is 1×20GP, lead time is 30–45 days, and delivery terms cover EXW, FOB, CIF, DDP and DDU, with payment by T/T (30% in advance, 70% against copy of B/L) or L/C. Pre-shipment inspection or third-party inspection is accepted, and online video audits are supported with process reports issued throughout the order.

A stacking and loading test on the stacking rack platform. Load verification sits inside the six-phase quality control sequence used for HM-PP001 and HM-PP002.

HM-PP001 vs HM-PP002: Side-by-Side Comparison

Specification	HM-PP001	HM-PP002
Catalogue name	Stacking Storage Racks	Warehouse storage rack
Base size	1395×1060×310 mm	1875×1060×310 mm
Post size	φ60×2.5 mm	φ60×2.5 mm
Loading capacity	1500 kg	2000 kg
Stackability	4 high	4 high
Loaded in 1×40'HQ	250 sets	160 sets
Material	Mild steel Q235	Mild steel Q235
Finish options	Zinc / hot-dip galvanized / powder coating	Zinc / hot-dip galvanized / powder coating
Listed industries	Textile & fabric roll, logistics & warehousing, food & grocery, agricultural, furniture	Textile & fabric roll, logistics & warehousing, food & grocery, agricultural, furniture
Documented references	Listed on SGS survey report CANWT00478167 and TUV inspection report ITD2025N0087	Listed on SGS survey report CANWT00478167 and TUV inspection report ITD2025N0087

Decision rule: choose HM-PP001 when the load per unit stays at or below 1500 kg and fits a 1395 mm base, and when container efficiency per set matters. Choose HM-PP002 when the load per unit reaches up to 2000 kg, when the load needs the longer 1875 mm base, or when a project specification calls for the higher rated platform. When both models are technically valid, run the container plan from Step 5 — that is usually the tie-breaker.

Quality inspection of heavy-duty stacking racks covering HM-PP001, HM-PP002 and HM-PP006 — one of six control phases applied across the range.

Use Cases: Where This Stacking Rack Platform Has Been Deployed

Cold-chain seed storage, Myanmar — 5,000 units in a single tender

A UNOPS programme delivered through a strategic procurement partner used this rack family for strategic storage and vertical organisation of rice seeds inside cold storage facilities. The project scaled to 5,000 units in a single major tender procurement, used a project configuration rated at 1,200 kg per unit with 6-high vertical stacking, and reported a 500% expansion of total warehouse storage capacity compared with floor-level storage, a 40% reduction in loading and unloading time through modular mechanical handling, and zero infrastructure failure during the seed preservation period. The stacking racks listed as applicable products for this programme are HM-PP001, HM-PP002 and HM-PP006 — note that the 6-high, 1,200 kg configuration is project-specific, while the standard catalogue rating for HM-PP001 and HM-PP002 is 4-high stacking at 1500 kg and 2000 kg respectively.

Bulk agricultural storage, South Korea — government agency client

A government agency in South Korea adopted the same rack range for bulk storage and vertical stacking of potatoes, beginning with 1,000 units and continuing with recurring reorders. The project involved high-precision technical transformation of the client's own drawings and a hot-dip galvanized finish for durability. Reported outcomes include a 300% increase in vertical storage capacity by moving from floor stacking to 4-high pallet stacking, a 45% reduction in material handling and retrieval time using standardised forklift-ready modular units, a 20% decrease in produce spoilage through improved ventilation and the removal of bottom-layer crushing pressure, and full return on investment within 14 months through reduced warehouse rental and labour costs. HM-PP001, HM-PP002 and HM-PP006 are the listed applicable products.

A stacking rack in service for bulk potato storage, from the South Korean government agency project that began with 1,000 units and continued with recurring reorders.

General industrial storage

Outside agriculture, both models are catalogued for textile and fabric roll storage, logistics and warehousing, food and grocery, and furniture operations. The same post-and-base architecture also underpins HM Group's broader stacking range, including fabric roll storage racks, carpet pad storage racks, nesting nestainer racks, barrel storage racks and tire storage rack models — a useful signal when a buyer needs one supplier across several storage formats rather than a single-purpose rack.

FAQ: HM-PP001 and HM-PP002 Buyer Questions

Are HM-PP001 and HM-PP002 covered by third-party inspection or certification?

Yes, both models appear in HM Group's documented compliance set. ISO 9001:2015 certificate No. CN24/00004786 was issued by SGS on 30 July 2024 and is valid to 29 July 2027 for the sale of material handling equipment for logistics turnover. SGS survey report No. CANWT00478167, issued 23 January 2026, covers 'Stacking Shelves (Style No. M2)' and lists HM-PP001, HM-PP002 and HM-PP006 as related products. TUV inspection report No. ITD2025N0087, issued 28 February 2025 with the scope 'Steel pallet', also lists HM-PP001 and HM-PP002. A Made-in-China BV audit report (No. MIC-ASI2491658) is valid from 29 October 2024 to 28 October 2026, and an SGS-issued Alibaba.com verified Pro Supplier certificate (No. 486803081_T) runs from 6 March 2026 to 6 March 2027. If a project specification cites ANSI MH16.1-2023 or EN 15512:2020, raise it as a project requirement at quotation stage.

Can HM-PP001 or HM-PP002 be customised for a specific load or workflow?

Both models are produced under OEM, ODM and fully customised production. The customisable parameters are surface treatment (zinc, hot-dip galvanized or powder coating), size, loading capacity, powder coating colour, logo printing, and design features such as a wire mesh guard, bottom wire mesh decking, forklift guide, bottom steel plate and wheels. The published 1500 kg and 2000 kg ratings and the 1395×1060×310 mm and 1875×1060×310 mm base dimensions describe the standard builds; a project with a different load case should specify that load at enquiry stage so the configuration can be reviewed.

What order quantity and payment terms apply, and how does container loading affect cost?

The minimum order quantity is 1×20GP. Payment is by T/T (30% in advance, 70% against copy of B/L) or L/C, and delivery terms include EXW, FOB, CIF, DDP and DDU. Container loading is part of the cost picture: HM-PP001 loads 250 sets per 1×40'HQ while HM-PP002 loads 160 sets, so the larger rack consumes roughly 56% more container space per set. Unit prices depend on specification, finish and order volume and are quoted per project, which is why the container plan should be built before landed costs are compared.

How can a buyer validate the racks before committing to a full order?

Quality control runs in six phases: pre-production sample inspection, raw material inspection, component inspection, semi-finished product inspection, finished product inspection and packaging inspection. Pre-shipment inspection or third-party inspection is accepted, and online video audits are supported with process reports issued throughout the order. Taken together, these steps let a buyer review the pre-production stage and verify the production run before shipment rather than after arrival.

What is the lead time, capacity and warranty?

Lead time is 30–45 days, supported by a stated monthly production capacity of 80,000 sets. Both HM-PP001 and HM-PP002 carry a 3 to 5 year warranty under proper use, and the warranty is tied to those operating conditions — the Myanmar seed storage programme, for example, was designed around a durable service life of 3–5 years under proper operational use. To start a selection, send your load per unit, base size and target quantity to the HM Group team for a quotation, or request the product catalogue as a first step.

Conclusion: Match the Base to the Load, Then Match the Container to the Volume

HM-PP001 and HM-PP002 are not two quality tiers of the same product. They are two load classes of one platform: 1500 kg on a 1395×1060×310 mm base, and 2000 kg on a 1875×1060×310 mm base, sharing a φ60×2.5 mm post, mild steel Q235 construction, 4-high stackability and the same zinc, hot-dip galvanized and powder coating options. The shorter rack ships 250 sets per 1×40'HQ; the longer rack ships 160.

Read together, the selection logic is straightforward. Confirm the load per unit and the load footprint first, because those two facts eliminate one of the models or leave both open. If both remain open, run the container maths, because a 90-set difference per 40'HQ changes the delivered cost per unit. Then settle the finish against the operating environment and confirm the commercial terms — 1×20GP MOQ, 30–45 day lead time, T/T or L/C payment, and pre-shipment or third-party inspection.

An industrial steel stacking rack with a powder-coated base. Both HM-PP001 and HM-PP002 can be supplied in powder coating, zinc or hot-dip galvanized finish.