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Product

Port crane MV/LV & spreader reeling cableDIN VDE 0250-813 / 8140.6/1 kV & 3.6/6–12/20 kV240–300 m/min · 30 N/mm²

STS-HV / STS-MT / STS-HT Port Crane High-Speed Spreader & DrumHigh-speed STS/RMG MV gantry reeling (3.6/6–12/20 kV) and LV spreader cables

Matched port crane cable range based on DIN VDE 0250-813 and 0250-814: STS-HV (3.6/6–12/20 kV MV gantry drum reeling with FO), STS-MT (0.6/1 kV multi-core reeling), and STS-HT (central-polyaramid vertical spreader reeling up to 240–300.

Anti-torsion braid
EMC screen
Oil-resistant
Flame-retardant
Order designation
STS-HV-FO 3×50+2×25/2+12FO 6/10 kV
Outer Ø max
47.5 mm
Weight ≈
3,280 kg/km
Min. bend R
570 mm
Max. pull
4,500 N
Check against my drumAll sizes (18)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Rated voltage
0.6/1–12/20 kV
STS-HV 3.6–20 kV · STS-MT/HT 0.6/1 kV
Reeling speed
240–300 m/min
240 m/min gantry · 300 m/min spreader
Dynamic pull
30 N/mm²
20 N/mm² perm. · 3.2–6.0 kN on STS-HT
Bending radius
6–12 × OD
6 × OD LV · 12 × OD MV drum reeling
Temperature
−35…+80 °C
flexing · fixed −50…+80 °C
Configurations
18
8 STS-HV · 5 STS-MT · 5 STS-HT

Typical values for this cable type, based on DIN VDE 0250-813 / DIN VDE 0250-814 — confirmed in the datasheet and quotation for your order.

Application fit

Is STS-HV / STS-MT / STS-HT right for your machine?

Select the sub-series by crane axis: STS-HV for MV gantry travel monospiral drums, STS-MT for LV auxiliary/trolley reels, and STS-HT for vertical hoist spreader reels.

Motorised monospiral reel

Suitable

STS-HV (3.6/6–12/20 kV) and STS-MT (0.6/1 kV) feed high-speed monospiral gantry travel reels up to 240 m/min.

Vertical / spreader reel

Suitable

STS-HT incorporates a central polyaramid strain-relief core for vertical motorized spreader reels up to 300 m/min.

Cylindrical / multi-layer drum

Suitable

Cylindrical and level-wind crane drums with 5GM3/5GM5 vulcanised sandwich sheath and ±50 °/m torsion rating.

Immersion & wet locations

Suitable

Resistant to coastal salt spray, ozone, UV and temporary trench/quay submersion (AD8 / HD 22.16).

Typical machinesShip-to-shore (STS) container cranesAutomated RMG & ASC yard cranesElectrified RTG (e-RTG) gantry reelsGrab ship unloaders & bulk cranesIntermodal rail-mounted yard cranes

Construction

Layer by layer

Shown: STS-HV 3 × phase + 2 split earths + 12/24 optical fibre unit with triple-extruded 3GI3 EPR field control; STS-HT adds a central polyaramid strain-relief core inside a 3-layer short-lay control bundle.

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Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Extra-flexible copper conductors & optical fibresElectrolytic tinned copper (STS-HV) or bare Class 5/FS copper (STS-MT/HT) + optional 6–24 G.652.D / OM3 optical fibresIEC 60228 Class 5 / DIN VDE 0295 short-lay stranding (7 × D lay length)
2MV radial field control (STS-HV)Triple-extruded inner semi-conductive EPR and outer cold-strippable semi-conductive NBR screen (≤ 200 Ω·m)DIN VDE 0250-813 void-free dielectric for 3.6/6 to 12/20 kV
3Core insulationHigh-grade 3GI3 EPR compound (STS-HV / STS-MT) or high-modulus TPE-E / EPR elastomer (STS-HT)DIN VDE 0207-20 · 90 °C continuous / 250 °C short-circuit
4Central polyaramid strain core / split earths & FO tubeSTS-HV: central rubber profile + split earths + gel-free FO tube; STS-HT: central polyaramid load-bearing core (3.2–6.0 kN)Eliminates copper elongation under high-speed vertical spreader acceleration
5Pressure-extruded inner sheathHeavy-duty polychloroprene / synthetic elastomer type 5GM3 / GM1bFills core interstices and stabilizes bundle geometry over diversion sheaves
6Anti-torsion synthetic / polyaramid braidVulcanised anti-torsion reinforcement braid bonded between inner and outer sheathsPrevents sheath slippage and corkscrewing up to ±50 °/m at 240–300 m/min
7Outer sandwich sheathExtra-heavy-duty polychloroprene (PCP) compound type 5GM5 (red on STS-HV, black on STS-MT, yellow on STS-HT)DIN VDE 0207-21 · tear ≥ 30 N/mm · EN 60811-404 oil · IEC 60332-1-2 flame · UV & salt-mist resistant

STS-HV (3.6/6–12/20 kV MV Drum Reeling)

3 phase cores (25–150 mm²) + split earths + optional 6/12/24 optical fibres, red 5GM5 sandwich sheath, up to 240 m/min

STS-MT (0.6/1 kV LV Power & Control Reeling)

4-core power (16–120 mm²) and 12–42 core control reeling cables with anti-torsion braid and black 5GM5 PCP sheath

STS-HT (0.6/1 kV High-Tensile Vertical Spreader)

24–56 core + FO vertical spreader reeling cable with central polyaramid strain member (3.2–6.0 kN) and yellow 5GM5 sheath

Types in this range

STS-HV · MV Gantry Drum Reeling — Cross-sectionDIN VDE 0250-813 · 3.6/6–12/20 kVSTS-HV · MV Gantry Drum Reeling

3P + split earths + 12/24 FO · red 5GM5 sandwich sheath · ≤ 240 m/min

STS & RMG main gantry travel monospiral reels

Datasheet
STS-MT · LV Power & Control Reeling — Cross-sectionDIN VDE 0250-814 · 0.6/1 kVSTS-MT · LV Power & Control Reeling

4G power & 18G–42G control · anti-torsion braid · ≤ 240 m/min

e-RTG gantry reels, boom hoists & trolley drums

Datasheet
STS-HT · Vertical Spreader Reeling — Cross-sectionCentral Polyaramid Strain Core · 0.6/1 kV + FOSTS-HT · Vertical Spreader Reeling

24G–56G + 24 FO · 3.2–6.0 kN vertical pull · ≤ 300 m/min

Motorized vertical headblock & twin-lift spreader reels

Datasheet

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on DIN VDE 0250-813 / DIN VDE 0250-814. Values for your order are confirmed in the datasheet and quotation.

Electrical

Rated voltage U0/U
3.6/6–12/20 kV (STS-HV) · 0.6/1 kV (MT/HT)
Max. operating voltage AC
4.2/7.2 to 13.9/24 kV (HV) · 0.7/1.2 kV (LV)
AC test voltage (5 min)
11–29 kV (STS-HV) · 2.5–3.5 kV (STS-MT/HT)
Optical fibre options
6, 12 or 24 fibres (G.652.D 9/125 or OM2/OM3)
Current rating basis
DIN VDE 0298-4 (30 °C in air)

Thermal

Temperature, flexing
−35 to +80 °C (−45 °C polar option)
Temperature, fixed
−50 to +80 °C
Max. conductor temperature
+90 °C
Short-circuit temperature (5 s)
+250 °C

Mechanical

Max. reeling speed
240 m/min (STS-HV/MT) · 300 m/min (STS-HT)
Max. tensile load
20 N/mm² perm. · 30 N/mm² dynamic (6 kN HT)
Min. bending radius
12 × OD (STS-HV) · 6 × OD (STS-MT / STS-HT)
Torsional stress
± 50 °/m (up to ± 100 °/m on MV drum)
S-bend pulley distance
≥ 20 × OD between sheave centres

Resistance

Oil resistance
EN 60811-404 (hydraulic & gear oils)
Flame retardance
IEC 60332-1-2
Marine & weather resistance
UV, ozone, salt-mist & 50 m water immersion

Reference standards

Construction standard
DIN VDE 0250-813 (HV) & VDE 0250-814 (MT/HT)
Conductor standard
IEC 60228 Class 5 / DIN VDE 0295 Class FS
Compounds & installation
VDE 0207 (3GI3/5GM3/5GM5) · VDE 0298-3 & -4

Identification

Sheath colour by series
Red (STS-HV) · Black (MT) · Yellow (STS-HT)
Core & fibre coding
DIN VDE 0293-308 + ANSI/TIA-598 FO coding
Customs tariff (HS)
8544.60 (STS-HV) · 8544.49 (STS-MT / STS-HT)

Sizes

18 standard port crane configurations (STS-HV, STS-MT & STS-HT)

Typical engineering dimensions across MV gantry reeling (3.6/6–12/20 kV), LV multi-core reeling (0.6/1 kV) and vertical spreader reels.

Dimensions & mechanical limits
Order designationU0/U
kV		Construction
mm² / FO		Outer Ø max
mm		Copper
kg/km		Weight ≈
kg/km		Min. bend R
mm		Max. pull
N		Enquiry
STS-HV · MV Gantry Drum Reeling (3.6/6–12/20 kV)
STS-HV 3×35+3×25/3 6/10 kV6/103 × 35 + 3 × 25/344.01,2482,6505283,150
STS-HV 3×50+3×25/3 6/10 kV6/103 × 50 + 3 × 25/347.01,6803,2405644,500
STS-HV 3×70+3×35/3 6/10 kV6/103 × 70 + 3 × 35/352.02,3524,2106246,300
STS-HV 3×95+3×50/3 6/10 kV6/103 × 95 + 3 × 50/357.53,2165,4106908,550
STS-HV-FO 3×50+2×25/2+12FO 6/10 kV6/103 × 50 + 2 × 25/2 + 12 FO47.51,6803,2805704,500
STS-HV-FO 3×95+2×50/2+12FO 6/10 kV6/103 × 95 + 2 × 50/2 + 12 FO58.03,2165,4606968,550
STS-HV-FO 3×50+2×25/2+12FO 12/20 kV12/203 × 50 + 2 × 25/2 + 12 FO53.51,6804,0206424,500
STS-HV-FO 3×95+2×50/2+12FO 12/20 kV12/203 × 95 + 2 × 50/2 + 12 FO63.03,2166,1807568,550
STS-MT · LV Power & Control Reeling (0.6/1 kV)
STS-MT 4G35 0.6/1 kV0.6/14 × 3537.81,3442,5402273,150
STS-MT 4G70 0.6/1 kV0.6/14 × 7048.22,6884,5202896,300
STS-MT 4G120 0.6/1 kV0.6/14 × 12060.54,6087,05036310,800
STS-MT 24G2.5 0.6/1 kV0.6/124 × 2.529.85761,3901791,800
STS-MT 42G2.5 0.6/1 kV0.6/142 × 2.538.61,0082,3802323,150
STS-HT · Vertical Spreader Reeling (0.6/1 kV + Strain Core)
STS-HT 24G2.5 Spreader0.6/124 × 2.5 + Strain Core28.55761,2701713,200
STS-HT 30G2.5 Spreader0.6/130 × 2.5 + Strain Core31.07201,5201863,900
STS-HT 44G2.5 Spreader0.6/144 × 2.5 + Strain Core34.51,0561,9502074,800
STS-HT 56G2.5 Spreader0.6/156 × 2.5 + Strain Core39.51,3442,5802376,000
STS-HT-FO 36G2.5+24FO Spreader0.6/136 × 2.5 + 24 FO + Strain Core35.08641,9202104,500
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • STS-HV uses a 12 × OD minimum forced-reeling radius; STS-MT and STS-HT use a 6 × OD minimum reeling radius.
  • STS-HT incorporates a central polyaramid load-bearing member supporting 3,200 to 6,000 N vertical spreader tension.

Reel check

Will it fit your machine?

A first screen using datasheet values. Engineering confirms drum geometry, acceleration and tension with your quotation.

Check results

Drum core 1,200 mm ≥ 1,140 mmBending radius OK (12 × OD 47.5 mm)
180 m/min ≤ 240 m/minWithin the rated travel speed
Minimum bending radius
570 mm
Min. drum core diameter
≈ 1,140 mm
Cable weight on drum
984.0 kg
Copper content
504.0 kg
Indicative only: based on the datasheet outer diameter and 12 × OD bending radius. Current derating for wound layers per DIN VDE 0298-4 is assessed separately.

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
AC high-voltage & partial discharge test11–29 kV AC & PD ≤ 40 pC (STS-HV) · 2.5–3.5 kV AC (STS-MT/HT)Every manufactured length
OTDR optical attenuation check (FO variants)≤ 0.4 dB/km at 1310 nm (SM) · ≤ 3.0 dB/km at 850 nm (MM)Every fibre on FO-equipped drums
Sample tests
5GM5 sandwich sheath tear, oil & ozone testTear ≥ 30 N/mm · EN 60811-404 oil · IEC 60332-1-2 flamePer batch
High-speed S-bend pulley & vertical spreader fatigue test240–300 m/min reeling endurance under 30 N/mm² pull and ±50 °/m twistType qualification

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

DIN VDE 0250-813 / 814CE · LVDRoHS · REACH

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX STS-HV-FO 3x50+2x25/2+12FO 6/10 kV DIN VDE 0250-813 · [year] · [metre mark]
Delivery form
Heavy export timber or steel port-crane drums, cut-to-length
Packaging
ISPM-15 heat-treated lagged drums with sealed moisture-proof ends and FO test report

Technical documents

Downloads

PDFSTS-HV / STS-MT / STS-HT Port Crane High-Speed Spreader & Drum – technical datasheet18 sizes · construction, technical data, approvalsXLSXSTS-HV / STS-MT / STS-HT spec data (Excel)All 18 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

How do STS-HV, STS-MT and STS-HT map to the different cable reels on a ship-to-shore (STS) or RMG container crane?
STS-HV (3.6/6 to 12/20 kV, based on DIN VDE 0250-813) feeds the main medium-voltage monospiral gantry travel reel up to 240 m/min, optionally integrating 12 or 24 optical fibres. STS-MT (0.6/1 kV, DIN VDE 0250-814) supplies low-voltage power and multi-core control reels on e-RTGs and boom hoists. STS-HT (0.6/1 kV + FO) adds a central polyaramid strain-relief core for vertical motorized headblock and spreader reels operating up to 300 m/min.
Why does STS-HT use a central polyaramid strain member for vertical spreader reeling?
On a vertical container crane spreader reel, the full suspended weight of 40 to 70 metres of cable plus dynamic hoist acceleration/braking acts directly along the cable axis. Placing a high-modulus polyaramid load-bearing core on the neutral centre axis carries 3,200 to 6,000 N of vertical tension so the surrounding short-lay 2.5 mm² control cores and optical fibres remain strain-free.
What sheave diameter and S-bend spacing are required on high-speed port crane gantry reels?
For STS-HV medium-voltage reeling cables, maintain a minimum bending radius of 12 × OD on the drum barrel and 15 × OD over deflection sheaves. For STS-MT and STS-HT low-voltage cables, the minimum drum bending radius is 6 × OD (7.5 × OD over rollers). Where the cable passes through an S-type directional change, keep at least 20 × OD between pulley centres.
Can STS-HT be used in an unpowered gravity spreader basket instead of a motorized spreader reel?
No. STS-HT is engineered for tensioned winding on a motorized vertical drum. Gravity-fed coiled spreader baskets on ship-to-shore cranes require a dedicated basket-lay cable such as XTRM (N)SHT11Y that is balanced to coil smoothly into a round basket under its own weight.

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03Message for our engineers

STS-HV / STS-MT / STS-HT Port Crane High-Speed Spreader & Drum

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Reel & motion:
- Reel type: 
- Drum core diameter (mm): 
- Cable length on drum (m): 
- Travel speed (m/min): 
- Max. acceleration: 
- Cycles per hour: 
- Length and quantity: 
- Ambient temperature: 
- Exposure (outdoor, water, oil, abrasion): 
- Destination country: 
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DatasheetRequest a quote