1–20T Hydraulic Slewing Crane for Ship Deck | Straight Boom Marine Crane with 360° Rotation

Product Overview

A hydraulic slewing crane is a type of marine lifting equipment designed for cargo handling and material transfer on ship decks and offshore platforms.
The 1–20T straight boom hydraulic slewing crane provides stable lifting capacity, smooth operation, and full 360° rotation, ensuring efficient cargo handling in marine environments. It is driven by a hydraulic system with precise control of lifting, luffing, and slewing movements.
Compared with knuckle boom cranes, the straight boom design offers a simpler structure, higher reliability, and lower maintenance cost, making it a cost-effective solution for vessels with sufficient deck space and standard lifting requirements.

Quick Specifications

• Safe Working Load (SWL): 1–20 Ton

• Working Radius: 2–15 m

• Slewing Range: 0–360°

• Hoisting Speed: 10–15 m/min

• Luffing Time: 40–80 s

• Drive Type: Hydraulic System

• Motor Power: 7.5–132 kW

• Working Temperature: -40°C to +50°C

• Surface Treatment: Sa2.5 Sandblasting + Epoxy Coating

Main Technical Parameters

Crane Selection Guide

Step 1 – Select Lifting Capacity (SWL)

• 1–5T → light-duty lifting (fishing vessels / small ships)

• 5–10T → medium-duty lifting and deck handling

• 10–20T → heavy-duty cargo handling and offshore operation

Step 2 – Confirm Working Radius

• Short radius (2–6 m) → higher lifting efficiency

• Long radius (6–15 m) → wider deck coverage and flexible operation

Step 3 – Select Crane Type

• Straight boom crane → simple structure, cost-effective, easy maintenance

• Knuckle boom crane → flexible operation, suitable for compact deck layout

Step 4 – Hydraulic System & Power

• Motor power should be selected based on SWL and working frequency

• Continuous operation → higher power range recommended

Engineering Note:
The final crane configuration should be selected based on lifting requirements, installation space, duty cycle, and classification society rules.
Customized design is available for offshore and special applications.

Technical Performance & Explanation

• 1–20T lifting capacity → suitable for different cargo handling requirements

• 360° slewing rotation → ensures full deck coverage and flexible operation

• -40°C to +50°C working temperature → suitable for harsh marine environments

• Sa2.5 sandblasting + epoxy coating → improves corrosion resistance and service life

Structure & Components

Hydraulic power unit | Slewing mechanism | Straight boom assembly | Hydraulic cylinder system | Winch & wire rope system | Control system | Base & pedestal

Custom Configuration & Inquiry Guide

✔ Step 1 – Lifting Capacity (SWL): 1–5T → light-duty applications | 5–10T → medium-duty cargo handling | 10–20T → heavy-duty offshore operation

✔ Step 2 – Working Radius: 2–6 m → higher lifting efficiency | 6–15 m → wider working range

✔ Step 3 – Installation Type: Deck mounted | Pedestal mounted

✔ Step 4 – Control System: Manual control | Remote control | Cabin control

✔ Step 5 – Power & Hydraulic System: Electric motor + hydraulic drive | Open loop / Closed loop system

✔ Step 6 – Optional Features: Anti-corrosion coating upgrade | Explosion-proof design (optional) | Low temperature design (-40°C) | Custom painting

✔ Step 7 – Working Environment: Ship deck | Offshore platform | Port / harbor

Send us the above information to receive technical drawings, configuration, and quotation.

How It Works

The crane operates through a hydraulic system that controls lifting, luffing, and slewing movements.
Hydraulic cylinders provide stable lifting force, while the slewing mechanism enables smooth 360° rotation, ensuring efficient and precise cargo handling.

Applications

Ship deck cargo handling | Offshore oil and gas platforms | Fishing vessels & aquaculture | Marine engineering vessels | Port and harbor operations

Certifications & Advantages

Certifications

CCS / NK / BV / ABS / DNV / LR / KR / RINA / IRS / RS / CRS

Advantages

Full 360° rotation for flexible operation | Stable hydraulic lifting system | Cost-effective straight boom design | Reliable performance in harsh marine environments | Easy maintenance & long service life

Drawing & Photos

• General arrangement drawing

• Product photos

• Installation layout drawing

Ordering Information

• MOQ: 1 Unit

• Delivery Time: Based on project

• Payment: T/T, L/C

• Customization: Available

FAQ

Q1: How to choose the correct crane capacity?

A: Based on lifting weight, working radius, and operation frequency.

Q2: When should I choose a straight boom crane?

A: When the vessel has sufficient deck space and standard lifting requirements.

Q3: What is the difference between straight boom and knuckle boom crane?

A: Straight boom cranes are simpler and more cost-effective, while knuckle boom cranes provide greater flexibility.

Q4: Can the crane be customized?

A: Yes, lifting capacity, working radius, and hydraulic system can be customized based on project requirements.