LadderCageFactory-Direct Cage Ladder
Cage Ladder
Cage ladder, factory-made — galvanized or SS304, custom heights; free quote and compliance kit with order. OSHA 1910.28 & EN ISO 14122-4 compliant.
Projects Delivered
Countries Exported
Quote Response
25 m bolted single-run
Cage Ladder – Galvanized & SS304 Options
Cage Ladder Materials
Hot-Dip Galvanized
Q235B with HDG 85–100 μm per ISO 1461. Best all-round value for outdoor and industrial use.
Stainless SS304/SS316
PMI-tested for chemical, marine and food-grade environments. Acid-pickled and passivated.
Custom Cage Ladder Heights
Any height up to 25 m in a bolted single run; multi-run systems with rest platforms beyond that.
Specifications
Cage Ladder Specifications
Every cage ladder is made-to-order with the engineered parameters below.
Get My Cage Ladder Quote| Specification | Value |
|---|---|
| Rung Diameter | Φ20 mm |
| Rung Spacing | 280 mm (≤300 mm) |
| Clear Width | 500 mm |
| Cage Diameter | Φ700 mm (hoops 40×5 @≤1500, straps 30×3) |
| Cage Start | 2.2 m above floor |
| Load Rating | 1.5 kN per rung |
| Entrance | Flared / flared splay entry |
| Standards | OSHA 1910.28 · EN ISO 14122-4 · BS 4211 |
Compliance Docs: MTC & DoC With Every Order
Full Compliance File, Included
No chasing paperwork after delivery — every cage ladder ships with its full compliance file.
- DoC — OSHA 1910.28 & EN ISO 14122-4
Declaration of Conformity to the relevant standard
- MTC 3.1 Material Certificate
EN 10204 3.1 for Q235B / SS304 / SS316
- Structural Calculation Sheet
Engineer-signed for project loads
Factory-Direct Pricing
Factory-Direct Pricing & Free Quote
Buy direct from the factory — distributors typically mark up cage ladders 2–3×. We quote transparent, itemized pricing in 24 hours with a free compliance kit.
Factory-Direct
No distributor markup. Quote direct from the production floor.
Itemized Quote
Material, machining, finishing, packaging — line by line, no hidden fees.
Compliance Kit Free
DoC, MTC & structural calcs included with every order at no extra charge.
Get a Cage Ladder Quote
Get a Cage Ladder Quote
Free quote in 24 hours + free compliance kit with every order. Tell us your height and material — we handle the rest.
- 24h itemized quote
- Free drawing review
- DoC, MTC & structural calcs included
Anatomy of a Factory Cage Ladder
What Arrives When You Order a Cage Ladder
A compliant cage ladder is an engineered assembly, not a ladder with a hoop wrapped around it. Below is every element we fabricate, weld and finish in the Shijiazhuang factory, and the job each one does once bolted to your structure.
| Component | Factory Specification | What It Does |
|---|---|---|
| Stiles | Paired vertical rails in Q235B or SS304/SS316 | Carry the climb loads and tie rungs, cage and anchors into one frame |
| Rungs | Φ20 mm at 280 mm spacing, 500 mm clear width | Rated 1.5 kN each — the surface you actually climb on |
| Cage hoops | 40×5 mm flats at ≤1500 mm centers, Φ700 mm barrel | Rigid rings that keep the enclosure round under side load |
| Cage straps | 30×3 mm verticals between hoops | Contain the climber so a slip stays inside the barrel |
| Cage start | Enclosure begins 2.2 m above floor level | Protection starts where a fall begins to be serious |
| Entry flare | Flared bottom hoops | Guide you smoothly into the barrel at the start of the climb |
Every component ships hot-dip galvanized to ISO 1461 (85–100 μm) or in stainless steel, with the MTC 3.1, DoC and structural calculation sheet that prove each line of this table. Single galvanized pieces run up to 14 m; taller climbs use bolted splices or multi-run platforms. Send your height and material and the exact assembly drawing arrives with your 24-hour quote.
Field Story — a 9 m Silo Climb, 48 Hours of Downtime
What a Cage Ladder Fixed at a Flour Mill — and What Actually Arrived on the Truck
The most common first call we take: a maintenance lead with a rusted uncaged ladder, an audit finding, and a shutdown window measured in hours. Here is how that job runs end to end.
The mill's 9 m silo ladder was original equipment — mild steel, painted once, no cage. The annual safety audit wrote it up twice: rung corrosion at the lower welds, and an unprotected climb above 2.2 m. Production would release the silo for two days only, so the replacement had to bolt on, fit the first time, and satisfy the insurer's photo review within the same week.
The mill's engineer sent two phone photos and the floor-to-platform height. Our engineer returned a dimensioned CAD layout the next day: a 9 m hot-dip galvanized caged ladder in two flanged splices so it loads into a standard container, cage starting at 2.2 m, hoops 40×5 at ≤1500 mm centres with 30×3 straps between them. Because every unit is trial-assembled on the factory floor before galvanizing, the splice bolt holes were proven aligned before anything went into the kettle — then ISO 1461 put 85–100 μm of zinc over every weld, inside and out.
Two riggers set both splices in under six hours. The compliance pack — MTC 3.1 material certificate, welding to ISO 5817 level C, trial-assembly and loading photos we keep on file for 10 years — reached the insurer the same day, and the finding closed without a site revisit.
| The Job | What Was Supplied |
|---|---|
| Climb | 9 m in two flanged splices — single pieces build to 14 m |
| Cage | Φ700 mm from 2.2 m, hoops 40×5 @≤1500, straps 30×3 |
| Rungs | Φ20 mm at 280 mm spacing, rated 1.5 kN each |
| Finish | HDG 85–100 μm per ISO 1461 |
| Paper trail | MTC 3.1 + ISO 5817 C weld records + install photos, retained 10 years |
Cage Ladder or the Next-Best Alternative
Pick the Vertical-Access Form Your Site Will Actually Live With
A caged ladder is usually the right answer — but not always, and not only because it is the cheapest per meter. Read your site against the four situations below before you send anyone a drawing.
| If Your Site Reads Like This | Specify This |
|---|---|
| Fixed climb, several users every shift, no harness-and-training program in place | A caged ladder — passive protection from 2.2 m, nobody manages PPE issue logs or annual recertification |
| One trained technician, a climb planned beyond 9 m, or a structure that cannot carry cage wind load | A vertical fall-arrest rail with harness and trolley — active protection that follows the user |
| Tools, spare parts and two-way traffic on the same route every day | An inclined stair or platform system — hands-free climbing beats every ladder when loads move constantly |
| The climb ends by stepping through onto a roof or mezzanine | A cage ladder with a walk-through exit group and landing platform — step out upright, never top the cage |
Four mistakes that cost buyers a second order
- Ordering by overall ladder length instead of floor-to-platform climb height — the cage start point is measured from the floor, and a 300 mm error moves every hoop
- Letting pipes or cable trays cross the Φ700 mm cage envelope — anything a climber can strike inside the cage defeats its purpose; flag obstructions at drawing stage
- Mixing OSHA and EN geometry on one site — cage starts, hoop spacing and platform rules differ; pick one standard set and hold every vendor on the project to it
- Skipping factory trial assembly to save a day — a misaligned splice found on the bench costs an hour; found at 6 m height it costs the installation day
Spec to Outcome Translation
Every Line on the Drawing, and What It Buys You
Factory jargon removed — five features of a Dengtai cage ladder, and the specific result each one hands your maintenance budget.
| Feature | Advantage | Your Outcome |
|---|---|---|
| Trial-assembled before dispatch | splice and bolt holes proven at bench | your crew bolts straight on — no rework day at height |
| HDG 85–100 μm to ISO 1461 | zinc over every weld, inside the cage too | the repaint conversation moves out a decade |
| Quote in 24 h from two photos | real geometry checked before you commit | you compare firm numbers, not catalog guesses |
| MOQ 1 with full QC chain | MTC 3.1 and ISO 5817 C even on one unit | a single replacement ladder stays insurable and auditable |
| Single pieces to 14 m | fewer bolted splices per climb | fewer joints to torque-check every inspection round |