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Special Crane

Custom-engineered lifting solutions for specialist environments — grab, precast, acid-resistant and cleanroom cranes.

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Special Crane

Special Purpose Crane Systems

SIEC specializes in the design and manufacture of non-standard crane systems for demanding and specialized working environments. Whether you need a grab crane for bulk material handling, a precision crane for precast concrete production, a corrosion-resistant crane for pickling lines, or a particle-free crane for cleanrooms — we deliver tailored solutions.

Each special crane is engineered from the ground up to meet the specific environmental, operational and safety requirements of its application, backed by SIEC's decades of crane manufacturing experience.

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1. Grab Crane / Clamshell Crane

SIEC grab cranes are fitted with clamshell (grab) buckets in place of standard hooks, enabling efficient handling of bulk and loose materials. Designed for high-frequency duty cycles in ports, power plants and steel mills, these cranes deliver reliable performance in the toughest environments.

Technical Parameters

ParameterRange
Lifting Capacity5 – 50 tons
Grab Bucket TypesDouble-rope, Multi-rope, Hydraulic, Electric
Material HandledCoal, Ore, Grain, Scrap, Waste, Fertilizer
Working DutyA6 – A8 (Heavy – Super Heavy)
Anti-Sway SystemYes — mechanical or electronic
Control ModeCabin / Remote control

Key Features

  • Heavy-duty grab opening/closing mechanism for high cycle rates
  • Abrasion-resistant steel construction on all wear surfaces
  • Anti-sway control for precise bucket positioning
  • Multiple grab types for different bulk materials
  • Reinforced structure for shock loading from grab impact

Applicable Industries

  • Ports & Terminals — coal, ore, grain unloading from ships
  • Power Plants — coal handling for boiler feed systems
  • Steel Mills — scrap metal charging and slag handling
  • Waste-to-Energy — refuse incineration plant feeding
  • Fertilizer & Chemical — bulk chemical handling
Grab Crane / Clamshell Crane

2. Precast Concrete Component Crane

Engineered specifically for precast/prestressed concrete plants, SIEC precast cranes offer the precise positioning, large span and synchronized multi-point lifting required for handling heavy concrete panels, beams, slabs, columns and pipe piles.

Technical Parameters

ParameterRange
Lifting Capacity10 – 100 tons
Span10 – 40 m
Lifting Height6 – 20 m
Lifting SpeedVFD-controlled, 0.5 – 8 m/min
Special AttachmentsVacuum lifters, Tilting frames, Spreader beams
Control ModeRadio remote with multi-hoist synchronization
Power Supply380V – 690V, 3-Phase, 50/60Hz

Key Features

  • Multi-hoist synchronized lifting for long/bulky loads
  • VFD variable speed control for ultra-precise positioning
  • Specialized lifting beams, vacuum suction pads and tilting frames
  • Large span design to cover multiple casting beds
  • Optional stack management system for inventory tracking

Applicable Industries

  • Precast Concrete Plants — wall panels, floor slabs, beams, columns
  • PC Component Yards — storage and dispatch of finished products
  • Prefabricated Bridge Element Production — segmental bridge girders
  • Pre-stressed Concrete Pipe Pile Factories
  • Modular Construction — volumetric building module handling
Precast Concrete Crane

3. Pickling / Acid Washing Crane

SIEC pickling cranes are designed for the aggressive environment of steel pickling lines and acid washing plants. Every component is engineered to resist corrosive acid fumes, with sealed enclosures, stainless steel parts and protective coatings ensuring long-term reliability.

Technical Parameters

ParameterRange
Lifting Capacity5 – 30 tons
Span5 – 25 m
Protection RatingIP54 / IP55 acid-fume resistant
Corrosion ProtectionEpoxy coating, Stainless steel components
Electrical ProtectionPressurized control panel, Sealed conduit
Track ProtectionCorrosion-resistant rail covers
Control ModeRemote control / Cabin with positive pressure

Key Features

  • Full sealed anti-corrosion design — epoxy-coated structures and stainless steel internals
  • Acid-fume resistant electrical enclosures with positive pressurization
  • Corrosion-resistant wire ropes, pulleys and hook blocks
  • Special rail protection and track covers
  • Precise positioning over pickling tank zones
  • Acid-resistant rubber bumpers and buffers

Applicable Industries

  • Steel Pickling Lines — hot-rolled coil pickling and rinsing
  • Stainless Steel Annealing & Pickling — AP lines
  • Metal Surface Treatment — phosphating, galvanizing lines
  • Chemical Processing — acid storage and handling areas
  • Hot Dip Galvanizing — kettle loading/withdrawal
Pickling / Acid Washing Crane

4. Cleanroom Crane

SIEC cleanroom cranes are purpose-built for controlled environments where particle generation, static discharge and contamination must be strictly controlled. Constructed from stainless steel and aluminum with sealed moving parts, these cranes meet Class 100 (ISO 5) cleanroom standards and GMP requirements.

Technical Parameters

ParameterRange
Lifting Capacity0.5 – 10 tons
Span3 – 20 m
Cleanroom ClassClass 100 (ISO 5) and above
Main Material304/316 Stainless steel / Aluminum alloy
LubricationCleanroom-grade, particle-free grease
Chain / RopeStainless steel chain / EN-encapsulated wire rope
Noise Level< 60 dB (low-noise operation)
Control ModeRemote / Automatic / Touch-screen panel

Key Features

  • All-stainless steel or aluminum construction — no rust, no particle generation
  • Smooth, crevice-free surfaces — no dirt or dust accumulation points
  • Cleanroom-grade sealed bearings and anti-static wheels
  • Low-noise VFD drive for quiet, smooth operation
  • Anti-static chain/rope and grounding system
  • Optional remote and fully automatic control integration

Applicable Industries

  • Semiconductor Fabs — Class 100 – 10000 wafer handling and equipment maintenance
  • Pharmaceutical — GMP-compliant material transfer in sterile production areas
  • Medical Device — clean assembly of implants, instruments and diagnostics
  • Food & Dairy — sterile ingredient handling in aseptic processing plants
  • Lithium Battery — dry-room handling of electrode materials in battery production
Cleanroom Crane

Get a Quote — Special Crane

Describe your specialized environment and lifting needs — our engineering team will design the perfect custom solution.

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SIEC Cranes — ZHE JIANG XIECHENG CRANE MACHINERY CO.,LTD.
Email: siec@siec-cranes.com | Tel/WhatsApp: +86 13136173663