Quick answer: Adjustable steel props (stemple) support formwork and slab shoring at heights from roughly 1.6 m to 4.0 m, with load capacity depending on size and extension as defined by EN 1065. Hot-dip galvanized props resist corrosion on European sites and can be reused across many pour cycles. Sino East Steel manufactures galvanized adjustable props with mill certificates and EU delivery — send your required heights and quantities for a quotation.
Adjustable Steel Props (Shoring Props)
Adjustable Steel Props — factory-direct products from Sino East Steel, one of China’s certified steel manufacturers serving Polish importers, distributors and contractors since 2005. Adjustable steel props (acrow props) are telescopic tubular supports used to hold formwork, slabs, beams and loads during concrete casting and renovation works. We supply standard and heavy-duty props from 1.5 m to 6.0 m extended height, manufactured to EN 1065, hot-dip galvanized, with EN 10204 3.1 mill test certificates, and packed for sea freight to Gdansk, Gdynia, Szczecin and other Baltic and Northern European ports.
This page provides the full technical picture of our prop range — sizes, load data, manufacturing background, quality assurance, packaging and ordering process — so your procurement team can evaluate the product without chasing data across multiple suppliers. For an exact quotation matching your required sizes and quantities, contact our export office; a confirmed price and delivery schedule are normally provided within 24 hours.
Key Specifications at a Glance
| Parameter | Value |
|---|---|
| Product | Adjustable steel prop (acrow prop) |
| Extended Height | 1.5 – 6.0 m |
| Load Capacity | 20 – 60 kN (by size) |
| Surface | Hot-dip galvanized (HDG) or painted |
| Standards | EN 1065 |
| Certification | EN 10204 3.1 MTC |
| Minimum Order Quantity (MOQ) | 10-20 tons |
| Lead Time | 15-25 days |
| Payment Terms | T/T, L/C |
Available Sizes & Load Ratings
| Prop Size | Min – Max Height | Allowable Load |
|---|---|---|
| Standard prop 1.5-3.0 m | 1.5 – 3.0 m | up to 30 kN |
| Standard prop 2.0-3.5 m | 2.0 – 3.5 m | up to 30 kN |
| Heavy-duty prop 2.5-4.5 m | 2.5 – 4.5 m | up to 50 kN |
| Heavy-duty prop 3.0-6.0 m | 3.0 – 6.0 m | up to 60 kN |
| Accessories | base plates, U-heads, tripods | matching props |
Standards & Compliance
Props are designed, manufactured and tested to EN 1065 (adjustable telescopic steel props), with safe working load verified for each size. The inner tube is punched with load-indexing holes; the outer tube carries a threaded collar for fine adjustment. Hot-dip galvanizing is performed to EN ISO 1461, or painted finish on request. Every prop is marked with its safe working load and size.
Typical Applications
- Supporting formwork during slab and beam casting
- Temporary propping of beams, lintels and openings during renovation
- Shoring of walls, ceilings and facades during repair works
- Support for scaffold platforms and loading areas
- Rental fleets — standard prop sizes for rapid deployment
Quality Assurance & Testing
Manufacturing runs under an ISO 9001:2015 certified quality system. Props are load-tested per EN 1065; threads and punched holes are gauge-checked, and welds are verified before finishing. Every shipment includes an EN 10204 3.1 Mill Test Certificate, and third-party inspection by SGS, TUV, BV or Intertek can be arranged at the buyer’s request.
Packing & Delivery
Props are bundled and strapped in sets or packed in pallets; heavy-duty sizes are crated. Production takes 15-25 days, followed by sea freight to Gdańsk, Gdynia or Szczecin, with door-to-door (DDP) options available for container shipments.
How to Order
- Send your inquiry: prop sizes, quantities, surface finish and destination port.
- Receive a quotation within 24 hours with current factory pricing and delivery schedule.
- Confirm the order: 30% T/T deposit, 70% before shipment, or L/C at sight.
- Production and optional third-party inspection (15-25 days).
- Shipment with full documentation: invoice, packing list, B/L, MTC, certificate of origin.
Frequently Asked Questions
What is the difference between a standard and heavy-duty prop? Heavy-duty props use a larger outer tube and thicker wall, offering higher safe working loads (up to 60 kN) at greater extended heights; standard props are more economical for routine formwork.
Are the props EN 1065 certified? Yes — every size is designed, tested and marked to EN 1065 with its safe working load.
Can you supply props with painted finish? Yes, painted finish is available on request; galvanized finish is recommended for outdoor and rental use.
Adjustable Steel Props — Specifications
| Parameter | Standard Range |
|---|---|
| Lengths (closed–extended) | 1.6–2.6 m / 2.0–3.5 m / 2.5–4.0 m / 3.0–5.0 m (up to 6.0 m heavy duty) |
| Outer / inner tube | 60.3 / 48.3 mm or 48.3 / 42.4 mm depending on size |
| Thread | M42 x 3.0 mm trapezoidal, rolled |
| Working load | 20–60 kN (size and extension dependent) |
| Head / base plates | 150 x 150 mm, 8–10 mm thick (fork head option) |
| Finish | Hot-dip galvanized to EN ISO 1461 |
Adjustable props are the classic temporary support: an outer tube with a threaded collar and an inner tube with a fork or flat head, extended by turning the collar nut. They support formwork beams, lintels, slabs during curing, and any temporary load until permanent structure takes over. Our props are made from certified tube with rolled threads and drop-forged heads, tested to rated working loads.
Technical Features
- Rolled trapezoidal thread — smooth adjustment under load, long wear life, no sharp edges.
- Fork head option — for supporting timber beams without strapping.
- Heavy-duty range — up to 6.0 m length and 60 kN working load for slab shoring.
- Load-tested — each batch verified; test certificates included with shipments.
Applications
Props are used in residential and commercial construction for slab formwork, beam propping, lintel support, and temporary support during renovation. Polish contractors keep large prop stocks for monolithic reinforced-concrete works; they also serve as emergency shoring and as adjustable supports for exhibition and event structures.
Quality Assurance and Delivery
Props are supplied with EN 10204 3.1 certificates and load tables per size and extension. Packed bundled and container-loaded, delivered to Baltic ports in 15–25 days; MOQ from 100 pieces.
Frequently Asked Questions
How is the working load of a prop affected by extension?
Working load decreases as the prop extends — the load table gives the safe load for every length position; at maximum extension a 60 kN prop carries about 20–25 kN.
Do you supply fork-head props?
Yes, fork heads for beam support are available on the same tube sizes.
Can props be combined into shoring frames?
Yes, with couplers and ledgers props form heavy-duty shoring towers; configurations and load data are provided on request.
Component Maintenance and Service Life
Hot-dip galvanized scaffolding components are designed for decades of service with minimal upkeep. After each project, clean components of mortar and concrete residue, stack them by type on timber battens, and store them off bare ground so the zinc layer is not damaged. Where the coating is scratched through to the steel, touch up with zinc-rich paint before the next erection cycle. Rotating stock evenly and keeping one spare set of wedges or blades per 1,000 components keeps a rental fleet productive for 15–20 years — the same discipline that Polish rental companies apply to their own fleets.
Load Classes and Configuration Notes
Scaffolding configurations are classified by load class according to EN 12811-1. Load class 3 (2.0 kN/m² distributed load) covers most facade renovation and finishing work; load class 4 (3.0 kN/m²) is used where materials are stacked on platforms; load classes 5–6 apply to heavy industrial and shoring duty. When you order a system, we confirm the load class with the bay layout, lift height and tie-in pattern, and provide the corresponding load tables. All systems can be configured as independent towers, facade scaffolds, birdcage supports or shoring structures simply by changing ledgers, transoms and ties — the same component pool covers all of them.
Why Buy Direct from Sino East Steel
Sino East Steel is a steel producer, not a trader: tubes for scaffolding components are rolled in our own mills, which gives us direct control over chemistry, wall thickness and surface quality, and keeps pricing at mill level. Since 2005 we have supplied Polish importers, distributors and contractors, and we maintain a bilingual (English / Polish) export team that prepares customs, certificates and shipping documentation from one source. Every order includes EN 10204 3.1 mill certificates, and for EU buyers we provide the technical file support needed for CE marking and EN 12811 compliance reviews.
Request a Quotation
To receive a factory-direct quotation, send your required component list (or facade area and working height), target port and quantity via the contact form, WhatsApp +86-186-2208-8833 or email [email protected]. Our export office responds within 24 hours with prices, load tables and a delivery schedule.
Component Lists for Complete Sets
When you order a complete system set, the quantity list is calculated from three inputs: the facade area to be covered, the working height, and the load class. For a typical 1.2 x 2.0 m bay at 2.0 m lift height, a rough rule of thumb is 2.0–2.5 m of standard per square metre of facade, 0.5 ledgers per square metre per lift, plus transoms, boards, base jacks and ties proportionally. We prepare the exact list from your drawings or measurements, so the set arrives balanced — enough standards to reach the top, enough ledgers for every lift, and the right number of boards, guard rails and toe boards for every platform level. Spare wedges, blades and pins are added at 1–2% of the component count, which is the practical allowance rental fleets use to cover loss and damage.
Erection and Dismantling Practices
Whichever system you choose, safe erection follows the same sequence: level the base with jacks, erect the first bay and fit ledgers and diagonals immediately, check plumb and level, then build lift by lift with guard rails and toe boards fitted before anyone works at the new level. Ties are installed at the spacing given in the load tables — typically every 4–6 m of horizontal length and every 2–3 lifts vertically, or closer where wind exposure is high. During dismantling, components should be lowered rather than thrown, and the scaffold should be inspected after any storm, impact or load change. Our documentation package includes an erection checklist that site teams can use directly.
Transport and Storage
Galvanized scaffolding components transport and store efficiently because they are stackable and do not require weather protection beyond basic precautions. For container loading, standards and ledgers are bundled by length with steel strapping and timber dunnage; boards and frames are palletized; small items (couplers, wedges, bolts) travel in bulk bags or cartons. On site, keep components on timber battens off the ground, sorted by type, and cover bundles if they will sit through winter weather. With this routine, a set retains full load capacity and appearance for 15–20 years of rental service — which is why galvanized systems remain the standard for professional fleets in Poland and across the EU.
Compliance and Documentation for EU Buyers
For buyers in Poland and the EU, we provide the technical documentation needed to satisfy CE marking requirements and EN 12811-1 conformity reviews: design basis and load tables for each system, material certificates (EN 10204 3.1) covering tube chemistry and mechanical properties, galvanizing certificates to EN ISO 1461, and weld inspection documentation. Where the scaffold is supplied as a complete system for sale to end users, the declaration of performance and technical file can be prepared from the same documentation set. Our export team is familiar with Polish customs procedures for steel products, including the documentation required for EU safeguard measures and import controls, and will prepare the shipping documents accordingly.
Working with Sino East Steel on Your First Order
Starting a relationship with a new supplier should be low-risk. On your first order we can agree a pre-production sample batch (for couplers, jacks or small components), arrange third-party inspection (SGS or similar) before shipment at your cost, and split a container shipment if you want to test the market with a smaller volume first. Payment by T/T with deposit and balance against shipping documents, or by irrevocable L/C, both work. After the first order, repeat orders benefit from fixed price windows of 30–90 days and reserved production slots, so your rental or construction schedule is not exposed to price swings.
Selection Support and After-Sales
Choosing between systems and sizing the set is easier with an engineer on the other end of the line. Our export team includes engineers who work daily with Polish and EU contractors, so we can recommend the system, calculate quantities, confirm load classes and review your tie-in pattern before production. After delivery, we support the first erection with remote guidance, provide spare parts and additional components from the same production batch codes, and can adjust a repeat order to match what your site actually consumed. You are not buying components from a catalogue — you are getting a configured system with engineering backup behind it.
