Yongmao STT293 vs Potain MCT 385 — The 16-Tonne Flat-Top Comparison for UAE High-Rise

If you’re putting up a 35–60-floor residential tower in Dubai, two cranes land in front of you on almost every quote: the Yongmao STT293 and the Potain MCT 385. Both are 16-tonne flat-tops. Both run 70–75 m jibs. On paper they look interchangeable — and that’s why so many procurement decisions get made on price alone.

They aren’t interchangeable. The mast family, climbing cage geometry, spare-parts ecosystem, instrumentation generation and resale curve all differ in ways that show up in the project P&L 12 months later, not in the OEM brochure today.

For the wider four-brand view, see our tower-crane brand comparison. This post drills into the single matchup that decides most UAE high-rise residential tenders.

The matchup in one paragraph

The STT293 and the MCT 385 are the two most-quoted 16-tonne flat-tops on UAE high-rise residential — 35-to-60-floor towers across Dubai, Sharjah and the northern emirates. Same lift envelope, same climb heights, same Dubai Municipality compliance path. The difference is design philosophy. The STT293 is built around the L68B mast family that’s become the de-facto regional standard — interchangeable with Zoomlion T-series, deeply stocked through HOE’s Dubai depot. The MCT 385 is built around Potain’s proprietary K-section ecosystem — older, more familiar to senior operators, with a European spare-parts backbone. Which one you pick affects every line of the project budget: capex, rental, parts contingency, climbing schedule, resale recovery.

Headline specs side-by-side

Manufacturer figures vary by configuration (jib length, hoist drum, motor option). The table below is indicative for the most commonly UAE-deployed setups.

The lift envelopes overlap heavily — within roughly 5–8% at any single radius. Pick on spare-parts and ecosystem fit, not the spec sheet hair-splitting.

Load chart compared — at the radii that matter

A 16-tonne crane’s interesting numbers aren’t at minimum radius (both hold full 16 t there). They’re across the mid-jib working band where most lifts happen, and at the tip where slab forms and crown lifts come from. Indicative figures for the 70 m jib:

Two observations. The STT293 carries a slight tip-load advantage at full jib — useful for crown lifts where the last 5-6 floors of formwork reach the corners. The MCT 385’s fall-off through the 30-50 m mid-band is marginally smoother thanks to the LVF Optima drive options — useful when your lift profile is dominated by repetitive mid-radius slab work.

The bigger driver of usable capacity is the hoist drive. The 110 kW LVF Optima on the MCT 385 trades headroom for speed across longer single-fall trips; the STT293’s 90 kW top-end variant is competitive but less aggressive. For typical two-fall UAE residential lifts, the difference is marginal. For overlaying your lift schedule against the chart, our load-chart guide walks through a worked Dubai example.

Mast section ecosystem — the long-tail decision

This is where the two cranes diverge most, and where most procurement teams under-think the implications.

The STT293 runs the L68B mast family — the 1.6 m × 1.6 m cross-section that’s become the de-facto regional standard. Three grade variants — L68B1, L68B2, L68B3 — let you tune mast strength against the free-standing and tied-up heights you need. HOE stocks all three grades in the Dubai depot, and the geometry is interchangeable with Zoomlion’s T-series mast sections, widening the regional pool of spares and substitutes. Our L68B1 vs L68B2 vs L68B3 guide covers grade selection.

The MCT 385 runs Potain’s K-Mast — proprietary K-section geometry, 1.6 m × 1.6 m nominal but with different bracing detail and connection pinning. K-Mast is mature and well-documented — and exclusive to Potain. Spare K-Mast sections are reliable but typically 1–3 weeks from European warehouses unless a regional supplier holds the SKU.

The implications:

• Free-standing height before first tie-in: roughly parity at 70 m for both.
• Climbing cage compatibility: zero cross-compatibility — an L68B cage cannot climb a K-Mast crane, and vice versa.
• Spare-parts depth in MENA: L68B wins decisively for regional stock. See the MENA mast sizing guide for the L46A1 / L68B family detail.
• Tie collar interchange: L68B tie collars are common across Yongmao / Zoomlion; K-Mast tie collars are Potain-specific.

For a project that intends to redeploy the crane across multiple HOE-supplied sites, the L68B ecosystem makes that redeployment substantially cheaper.

Climbing approach — external and internal

Both cranes support external climbing (tied periodically to the building frame) and internal climbing (passing up through engineered openings in successive floor slabs). For typical UAE high-rise residential, internal climbing is the default; for irregular shapes or short towers, external is fine.

The climbing cage geometry differs:

• STT293 cage — sized for the L68B mast. Typical floor opening 3.5–4.0 m × 3.5–4.0 m including shoring and clearance. Geometry shared with the broader Yongmao / Zoomlion L68B family.
• MCT 385 cage — sized for the K-Mast. Typical floor opening 3.8–4.2 m × 3.8–4.2 m, modestly larger because the K-Mast arrangement includes Potain’s specific shoring profile.

If you’re designing the structural slab for internal climbing, lock in the cage geometry at design stage — the crane brand and slab opening detail go in together. A late switch between families means re-sizing the opening and shoring temporary works. For the internal-versus-external trade-off, see our climbing approach guide.

Erection time and crew

Both cranes erect with a mobile assist crane, sized against the heaviest single-component lift — usually the slewing assembly or counter-jib. Indicative timings for the 70 m jib configuration on a typical Dubai site:

The differences are small. The MCT 385’s slightly heavier slewing platform pushes the assist-crane size up a notch in some configurations; the assembly sequence is comparable. The bigger driver of erection time is site logistics — access window, blocked roads, mobile crane availability, MOHRE midday-ban shift planning June through September — not the crane brand.

Operating cab and electronics

This is where Potain’s 2020s investment shows most visibly. The MCT 385 ships with CCS — Potain’s Crane Control System — a touchscreen with integrated load-moment indication, anti-collision configurability, fault diagnostics and remote-monitoring through Manitowoc CONNECT. The Potain Vision cab is comfortable and well-insulated, with above-average forward visibility.

The STT293 runs Yongmao’s current-generation instrumentation — touchscreen-based, with integrated load-moment indication and anti-collision support, in a cab that’s improved markedly over older STT models but still trails the Potain on subjective comfort and visibility detail. The remote-monitoring integration is less mature than CCS on multi-crane sites.

For a single-crane site this rarely matters — both cabs serve a full shift cleanly. For a multi-crane Dubai cluster with integrated anti-collision and shared control-room monitoring, CCS is more polished out of the box; Yongmao’s integration works but takes more commissioning effort.

UAE climate fit

Both manufacturers spec their cranes for hot-climate operation and both are deployed across MENA at scale. The subtle differences:

• Motor cooling: both rated for ambients comfortably above the UAE summer peak. No meaningful operational difference structurally or electrically.
• Control panel ingress: both at IP54/55 typical, with sealed enclosures and dust filtration. Sandstorm exposure in Shamal season drives the cleaning cadence, not the brand.
• Electronics resistance: the MCT 385’s CCS electronics are slightly more sensitive to enclosure-temperature spikes — Potain’s manuals are explicit about sun-shading the cabinet faces. The STT293’s electronics are slightly more robust to the same exposure but trade off some interface polish.

A well-maintained crane of either family runs cleanly through a Dubai summer. The ones that suffer are the ones with deferred cabinet cleaning or ignored dust-filter schedules, regardless of brand.

Procurement economics — the AED envelope

Indicative ranges only. Actual pricing depends on jib length, mast height, climbing kit, motor option, new versus used, and current FX. Our most-recent Dubai-market reference points:

The STT293 is 15–25% cheaper on capex new, with a similar gap on rental, partly offset by the MCT 385’s stronger resale recovery. On a 24-month rental scenario, the STT293 is reliably cheaper in TCO. On a 24-month capex-and-resell scenario, the gap narrows to roughly 5–15% in the STT293’s favour, depending on resale conditions at exit.

Two cost lines not in the table that often decide the procurement:

• Lead time — STT293 from regional stock can be on a Dubai trailer in 5–10 working days. MCT 385 from Potain factory has been 16–28 weeks plus shipping in the post-2024 supply environment.
• Downtime cost during parts wait — a 2-week wait on a breakdown is fundamentally different cost-wise than a same-day pull from local stock, and that asymmetry compounds the STT293’s TCO advantage.

Spare-parts depth — the operational difference

We covered this in the brand comparison for the four-brand picture. At the model-specific level:

STT293 — Yongmao’s regional parts ecosystem is the strongest in MENA among the major OEMs. HOE’s Dubai depot stocks L68B1/B2/B3 mast sections, STT293 climbing cages, tie collars, fixing angles, hoist and slew motors, gearboxes, inverters, SAJ40/SAJ60 anti-fall devices, ropes and sheaves. Critical-path parts dispatch is typically same-day or next-day to UAE sites and within the working week to KSA, Oman and Bahrain.

MCT 385 — Potain’s regional parts presence is good but the inventory backbone sits in European warehouses. K-Mast sections, Potain-specific climbing cage components, CCS electronics modules and Potain-coded motor assemblies are typically 1–3 weeks to UAE site unless a regional supplier holds the SKU. Consumables (ropes, brake pads, common motor parts) close the gap; specialised assemblies don’t.

On a crane sitting on the critical path of a high-rise build, that difference is the single most consequential variable in the operational P&L. See our spare-parts procurement guide for the planning logic across both ecosystems.

The honest verdict

For a typical 40-floor Dubai residential — open-ish plot, 16-tonne maximum lift, 70 m jib, free-standing to first tie-in at 40–60 m then climbing — HOE’s default recommendation is the Yongmao STT293. The lift envelope fits, the L68B mast climb is well-proven, the Dubai-stocked spare-parts depth removes downtime risk, and the capex saving versus an MCT 385 redeploys cleanly into a longer jib, a heavier climbing reserve, or commissioning contingency.

The exceptions where we’d recommend the MCT 385 instead:

• Contract specifies Potain or European-spec compliance — common on JV builds with European parent companies.
• Legacy operator and project-management crews — if your site team has run 30 MCT 385s and zero STT293s, the familiarity dividend pays for the capex gap.
• Resale at end of project is critical to financing — the MCT 385’s stronger resale market in MENA tips the 24-month math.
• Multi-crane Downtown site with shared anti-collision/monitoring — CCS integrates with a higher polish than current Yongmao instrumentation.

For most other UAE high-rise residentials, the STT293 wins on the procurement spreadsheet and on the operations P&L. The MCT 385 is the right crane in the right context, just not the default. For broader sizing across the UAE market, see our 2026 selection guide. For the hammerhead-versus-luffing call that comes before the brand decision, see our hammerhead vs luffing comparison.

How HOE quotes the matchup

HOE supplies, erects, services and dismantles both the STT293 and the MCT 385 across the UAE. When you send us a project brief, we work backwards from the actual lift envelope — maximum load × radius, free-standing height before first tie-in, climbing approach, mobilisation window, project duration — and quote both options side-by-side where the call is genuinely close. Where the brief makes the answer obvious (long redeployment program tips clearly to STT293; JV-spec EU compliance tips clearly to MCT 385), we say so up front rather than presenting a false choice.

To run a quote against your actual lift profile, send the lift schedule and build sequence — we’ll come back inside 48 hours with model-by-model pricing, lead time, climbing kit specification and indicative rental terms. Sales: +971 50 144 4810. Breakdown 24/7: +971 4 880 3079. Send a message → or browse the current Dubai-stocked range on our products page, and the supply scope on sales & supply.

The FAQs below cover capex, parts depth, climbing geometry and operator transferability in more detail.