Will you provide installation guidance?

Yes, we supply detailed installation drawings, operation manuals, and tutorial videos. Online remote technical support is available all the time.

Can you provide complete export customs documents?

Yes. We can offer Proforma Invoice, Packing List, Commercial Invoice, and all required documents for customs clearance.

What are your payment terms?

Standard term is deposit after contract confirmation and balance paid before shipment. Negotiable terms are available for long-term cooperative partners.

Can I purchase grabs, container spreaders, and other attachments together?

Certainly. We supply complete supporting accessories including grabs, spreaders, clamps, and control systems for one-stop procurement.

50 Ton Double Girder Top Running Heavy Duty Overhead Crane

Name: 50 Ton Double Girder Top Running Heavy Duty Overhead Crane
Brand: Mairuite (Shandong) Heavy Industrial Machinery Co., Ltd.
SKU: 2183647202

Shandong, ChinaMairuite (Shandong) Heavy Industrial Machinery Co., Ltd.

US$5,500.00-20,000.00

1 Set

Product specifications

Lifting Capacity

Product profile

Customization

Available

After-sales Service

Online Support, on-Site Installation

Warranty

1 Year

Model NO.

Certification

GS, RoHS, CE

Condition

New

Operation Form

Air Operation+Ground Operation

Maximum Lifting Height

25-30m

Maximum Lifting Weight

100-150t

Main Girder Form

Double Girder

Type

Overhead Crane

Working Duty Class

A3-A7 Optional

Hoist Type

Wire Rope Electric Winch

Control Mode Combination

Pendant + Wireless Remote Dual Control

Travel Buffer

Rubber Buffer Installed at Both Ends

Main Power Supply Form

Closed Bus Bar Power Supply

Anti-Dust Treatment

Motor Dust-Proof Protection

Hook Safety Latch

Spring-Loaded Safety Latch Fitted

PLC Monitoring System

Real-Time Operation Data Monitoring

Transport Split Design

Main Girder Separable for Shipment

Allowable Working Humidity

≤85% Non-Condensing

Brake Type

Electromagnetic Disc Brake

Rail Sweeper

Track Cleaning Device Equipped

Third-Party Inspection

Accept Customer Designated Inspection

Overseas After-Sales

Overseas Engineer Dispatch Available

Surface Priming Coat

Anti-Rust Epoxy Primer

Transport Package

Bare / Nude Packing, Shipped in Sections

Specification

10t-200t, Span: 7-40m, Lifting Height: 3-30m

Trademark

MRT

Origin

Chian, Shandong

HS Code

8426119000

Production Capacity

50000 Sets/Year

Key features

European Standard Design: Welded box-girder structure with FEA analysis, low headroom, and smooth VFD control.

Wide Capacity Range: Lifting capacity from 1t to 500t with spans up to 40m and heights up to 30m.

Full Customization Support: OEM/ODM available for load, span, power supply, and working environment conditions.

VFD Drive System: Variable frequency drive for soft start/stop, precise positioning, and energy saving.

Dual Braking System: Electromagnetic disc brake combined with safety brake for reliable load holding.

Global Certifications: Compliant with CE, ISO9001, BV, and other international quality and safety standards.

12-Month Warranty: Full machine warranty covering quality failures with free replacement parts.

Overseas Technical Support: Remote video guidance and optional on-site engineer dispatch for installation and commissioning.

Company profile

Importers and Exporters

Mairuite (Shandong) Heavy Industrial Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.12h CertifiedTerms of Payment: T/T, Western Union, PayPal, etc.

About Our Factory & Business Background

AddressYangliu Town Industrial Park, Xintai City, Tai'an, Shandong, China

International Commercial Terms(Incoterms)EXW, CFR, CIF, FOB

Average Lead TimePeak Season Lead Time: 1-3 months Off Season Lead Time: one month

Minimum Order Quantity1 Set

Supply Chain Partners10

Our Production Capability & Technical Expertise

Main ProductsFully Autonomous Unmanned Crane, Overhead Crane, Transfer Cart, Gantry Manipulator, Grab, Rubber Tire Gantry Crane, Portal Crane, Automatic Overhead Crane, Automatic Gantry Crane, Container Straddle Carrier

R&D Engineers1 people

Our Industry Experience & Global Business Record

Main MarketsSoutheast Asia/ Mideast

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Product Q&A

Q:Are you a real manufacturer?

We are a professional heavy industry manufacturer with a 120,000 m2 modern production plant and integrated R&D, design, production & sales.

Q:Can I customize the equipment according to my working site?

Yes. Overhead & gantry cranes, truss manipulators, and electric transfer carts can be customized based on load capacity, span, stroke, power supply, and site conditions.

Q:How do you pack and ship the equipment?

Electrical components use vacuum moisture-proof packaging. Steel structures have anti-rust protection. Fumigation-free wooden cases are optional. Oversize cargo uses flat rack & open-top container sea freight.

Q:What is your warranty policy and after-sales service?

We provide a 12-month warranty for the whole machine (wearing parts excluded) with free replacement parts for quality failures. Remote video technical support is available for overseas customers.

Q:Can you arrange engineers for site survey?

On-site survey service is available for domestic projects. For overseas buyers, send site dimensions and photos, and we will complete drawings and technical solutions.