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: Deposit after contract confirmation, balance paid before shipment. Negotiable terms 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. One-stop procurement saves your communication cost

31t Heavy-Capacity Welded Structure Automatic Emergency Halt Double Girder Overhead Crane for Large Steel Frame Hoisting Steel Structure Processing Workshop PRO

Name: 31t Heavy-Capacity Welded Structure Automatic Emergency Halt Double Girder Overhead Crane for Large Steel Frame Hoisting Steel Structure Processing Workshop PRO
Brand: Mairuite (Shandong) Heavy Industrial Machinery Co., Ltd.
SKU: 2189293952

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

30-40m

Maximum Lifting Weight

>200t

Main Girder Form

Double Girder

Type

Overhead Crane

Working Duty Class

A3-A7

Travelling Mechanism

Motor-Reducer Integrated Drive

Lifting Motor Type

Squirrel-Cage Explosion-Proof Motor

Main Beam Connection

High-Strength Bolt Splicing

Cab Operation Mode

Integral Closed Driver Cabin

Buffer Type

Polyurethane Buffer

Brake Style

Electromagnetic Disc Brake

Power Supply Mode

Slide Wire Power Supply

Auxiliary Lifting Capacity

5-10t

Anti-Swing Function

Optional Support

Overload Protection

Intelligent Weight Limiter

Paint Thickness

80-120μm

Wheel Material

42CrMo Forged Steel

Environmental Working Temperature

-20℃~+45℃

Installation Condition

Indoor Factory Building Application

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 Load Capacity Range: Available from 1t to 500t with spans up to 40m and lifting heights up to 30m.

VFD Drive System: Variable frequency drive ensures 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 OHSAS18001 standards for international markets.

12-Month Warranty: Covers the whole machine with free replacement parts for quality failures.

Customization Support: OEM/ODM services available for load, span, power supply, and special environments.

Comprehensive After-Sales: Includes online support, remote installation guidance, and lifelong technical assistance.

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: ≤18h 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? What is your company scale?

We are a professional heavy industry manufacturer. We own a 120,000 m2 modern production plant with registered capital of 318 million RMB. Integrated R&D, design, production & sales. Standard models in stock, customized non-standard equipment available. Customers are warmly welcomed to visit our factory.

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

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

Q:How do you pack and ship the equipment?

Electrical components use vacuum moisture-proof packaging. Steel structures are reinforced with anti-rust protection. Fumigation-free wooden cases are optional. For oversize cargo, we arrange flat rack & open-top container sea freight solutions.

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

12 months warranty for the whole machine (wearing parts excluded). Free replacement parts for quality failures within warranty. We provide remote video technical support for overseas customers

Q:Will you provide installation guidance?

Detailed installation drawings, operation manuals and tutorial videos will be supplied. Online remote technical support is available all the time