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Project cargo secured with lashing frames in the hold

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Cargo Lashing & Securing Services Vietnam

SVC Marine carries out cargo lashing, securing, dunnage, chocking and selected sea-fastening work for project cargo, heavy equipment, machinery, steel structures and breakbulk shipments in Vietnam.

We prepare manpower, tools and securing materials, execute the agreed securing arrangement, follow vessel or survey comments and provide completion evidence before sailing.

Work packages

  • Project Cargo
  • Heavy Equipment
  • Steel & Breakbulk
  • Dunnage & Chocking
  • Sea Fastening

Our lashing teams carry out dunnage, chocking, lashing and sea-fastening for project cargo, heavy equipment and breakbulk shipments.

Cargo units lashed in the hold
Cargo units lashed in the hold

01

What Is Cargo Lashing and Securing?

Cargo lashing and securing is the physical restraint of cargo against movement during transportation. Depending on the cargo and vessel, securing may use dunnage, chocking, chains, wire ropes, turnbuckles, shackles, webbing, anti-slip material, welded stoppers or other approved arrangements.

For marine transport, the arrangement must account for cargo weight, dimensions, centre of gravity, stowage position, available securing points, vessel motion, contact surfaces and the applicable vessel, engineering or survey requirements.

SVC Marine executes selected cargo securing work in Vietnam using field manpower, materials and vessel-side attendance. Where formal securing calculations or sea-fastening engineering are required, the approved technical basis must be provided or separately arranged.

Physical execution of lashing or sea fastening does not make SVC Marine the engineering designer, approving naval architect, classification society or Marine Warranty Surveyor.

02

No Securing Plan Without Reliable Cargo Data

Required Cargo Inputs

Unknown cargo weight or centre of gravity can materially affect the securing method.

Centre of gravity is not assumed to sit at the geometric centre. Where COG is not supplied, this is raised before the securing arrangement is fixed.

  • Cargo description
  • Number of units
  • Length
  • Width
  • Height
  • Gross weight
  • Centre of gravity
  • Base footprint
  • Support points
  • Lifting points
  • Securing points
  • Fragile areas
  • No-weld areas
  • Drawings
  • Packing list
  • Transport frame
  • Preservation requirements

03

Cargo Securing Also Depends on the Vessel

Vessel and Stowage Inputs Reviewed Where Available

Deck strength, tank-top strength or securing-point capacity is never assumed from visual appearance. Formal verification may require vessel drawings, owner information or engineering review.

  • Cargo hold or deck
  • Stowage plan
  • Deck / tank-top limits
  • Lashing points
  • Strong points
  • Cargo Securing Manual
  • Hatch cover stowage
  • Access
  • Cargo gear
  • Loading sequence
  • Voyage route
  • Weather exposure
  • Other cargo units

04

What Is the Lashing Work Being Built Against?

Before mobilisation, the execution team must know which document or instruction controls the work.

Vessel Cargo Securing Manual

Where applicable to the vessel and cargo type.

Engineering Securing Plan

For heavy, oversized or project cargo.

Sea-Fastening Drawing

For welded stoppers, foundations or fabricated securing structures.

Marine Warranty Survey Requirement

Where an MWS is appointed for the shipment.

Master / Chief Officer Requirement

For operational acceptance onboard.

Cargo Surveyor Requirement

Where a surveyor is appointed by the cargo or vessel interest.

For complex or heavy cargo, verbal instruction alone is not treated as a sufficient securing basis. The controlling document is identified before the work package is priced and executed.

05

Why Cargo That Looks Stable Can Move at Sea

Forces During Sea Passage

  • Transverse acceleration
  • Longitudinal acceleration
  • Vertical acceleration
  • Rolling
  • Pitching
  • Heaving
  • Vibration
  • Impact
  • Reduced friction
  • Weather

How Cargo Fails

Where securing calculations are required, the appropriately qualified party prepares or approves them for the actual cargo, vessel and voyage.

  • Slide
  • Roll
  • Tip
  • Lift
  • Shift
  • Rotate
  • Friction
  • Support
  • Blocking
  • Chocking
  • Lashing
  • Sea fastening

06

The Cargo Must Sit Correctly Before It Can Be Lashed Correctly

Dunnage and Support Scope

  • Timber dunnage
  • Hardwood support
  • Steel support where engineered
  • Separation
  • Anti-slip material
  • Contact protection
  • Load distribution
  • Levelling
  • Support under frames
  • Surface protection

Checked Before Lashing Starts

Lashing should not be used to compensate for poor cargo support.

  • Support location
  • Cargo base
  • Vessel structure
  • Contact pressure
  • Movement risk
  • Drainage
  • Removal at discharge

07

Prevent Movement Before Adding Tension

Chocking and Blocking Methods

  • Timber chocks
  • Timber wedges
  • Steel stoppers
  • Side blocking
  • Fore / aft blocking
  • Wheel chocks
  • Track chocks
  • Frame stops
  • Cradle systems

Additional Controls for Mobile Equipment

Ordinary timber chocking is not treated as suitable for every heavy cargo. The blocking method is selected against the actual unit weight, base condition and securing basis.

  • Wheels
  • Tracks
  • Suspension
  • Steering
  • Parking brake
  • Movable components

08

Chain Lashing for Heavy and Industrial Cargo

Components

  • Lashing chain
  • Turnbuckle / tensioner
  • Shackle
  • Hook
  • D-ring or vessel strong point

Checked During Installation

Material certificates and working load limits are checked against the securing requirements for the components used.

  • Arrangement
  • Direction
  • Angle
  • Securing point
  • Cargo connection
  • Edge contact
  • Tension
  • Material condition

09

Wire Lashing for Suitable Cargo Arrangements

  • Wire rope
  • Clips / clamps
  • Turnbuckles
  • Shackles
  • Strong points
  • Protection sleeves

Execution Considerations

Clip quantity and spacing follow the applicable standard or manufacturer requirements for the wire used on the job.

  • Wire condition
  • Bending
  • Edge damage
  • Connection method
  • Tension
  • Cargo surface
  • Re-tightening

10

When Steel Chains Are Not Appropriate

Cargo Types

  • Crated machinery
  • Painted surfaces
  • Sensitive equipment
  • Lower-weight units

Possible Tools

Webbing is not automatically suitable for heavy project cargo. Its capacity and application must suit the cargo, the stowage position and the securing requirement.

  • Webbing straps
  • Edge protectors
  • Soft protection
  • Anti-slip mats

11

Welding, Stoppers & Fabricated Sea Fastening

Possible Work

  • Welded stoppers
  • Steel chocks
  • Brackets
  • Support frames
  • Foundations
  • Temporary securing structures
  • Sea-fastening beams
  • Fabricated restraint components

Confirmed Before Work Starts

No welding is performed onto vessel structure solely because it is convenient. Location and method must be accepted by the responsible vessel and technical parties.

Where required, engineering, class, the Marine Warranty Surveyor, the owner and the master or chief officer review the arrangement before execution.

  • Securing drawing
  • Vessel approval
  • Suitable structural location
  • Material
  • Welding requirement
  • Hot Work Permit
  • Access
  • Fire watch
  • Coating protection
  • Survey requirement

12

Sea Fastening Is Also a Hot Work Operation

Controls That May Apply

The list above is indicative, not a universal hot work procedure. The vessel, port, terminal and responsible safety parties control the actual permit process.

  • Hot Work Permit
  • Risk assessment
  • Toolbox talk
  • Fire watch
  • Gas-free condition where applicable
  • Adjacent cargo
  • Fuel / oil exposure
  • Opposite-side inspection
  • Fire-fighting equipment
  • Welding leads
  • Isolation
  • Port / terminal permission

13

Heavy Equipment & Mobile Machinery

Typical Units

  • Excavators
  • Cranes
  • Loaders
  • Trucks
  • Port equipment
  • Industrial machinery
  • Shipyard equipment

Key Controls

  • Weight
  • COG
  • Wheel / track
  • Steering
  • Parking brake
  • Hydraulic boom
  • Attachments
  • Battery
  • Fuel
  • Glass
  • Hydraulic hoses
  • Movable parts
  • Sensitive components

Execution

One generic lashing arrangement is not applied across all machinery. Each unit is secured against its own weight, base condition, movable parts and stowage position.

  • Wheel or track chocking
  • Chain lashing
  • Wire lashing
  • Boom restraint
  • Attachment securing
  • Surface protection
  • Dunnage

14

Steel Pipes, Plates, Beams & Fabricated Structures

Cargo Forms

  • Pipes
  • Beams
  • Plates
  • Fabricated structures
  • Bundles
  • Frames
  • Process modules

Risks

  • Rolling
  • Sliding
  • Bundle movement
  • Steel-to-steel slip
  • Edge damage
  • Deformation
  • Contact damage
  • Weather

Controls

Steel coil securing is treated as a separate technical scope and is confirmed case by case rather than included automatically under general steel cargo.

  • Dunnage
  • Timber separation
  • Chocking
  • Wedges
  • Chain
  • Wire
  • Stoppers
  • Bundling
  • Surface protection

15

Project Cargo and Out-of-Gauge Units

Reviewed Before Execution

  • Dimensions
  • Weight
  • COG
  • Transport frame
  • Lifting arrangement
  • Sea transport orientation
  • Securing points
  • Vessel structure
  • Weather exposure
  • Discharge method

Complex Cargo May Require

SVC Marine executes the field scope after the required technical basis is established.

  • Engineering calculation
  • Sea-fastening drawing
  • Transport analysis
  • MWS review
  • Class review
  • Dedicated welding plan

16

A Lashing Plan Fails If the Material Is Wrong or Late

Register fieldWhat it controls Material

Size, grade and type required by the securing basis.

Derived from the securing arrangement and cargo unit count.

What is physically on site or confirmed for delivery.

New, serviceable, worn or rejected on inspection.

Where required by the securing basis or the appointed surveyor.

Which unit, which side, which securing point.

SVC Marine does not hold permanent stock of every lashing material. Availability is confirmed per job, and substitutes are proposed to the client rather than installed silently.

  • Chain
  • Wire rope
  • Turnbuckles
  • Shackles
  • Hooks
  • Webbing
  • Timber
  • Anti-slip material
  • Steel plate
  • Profiles
  • Welding consumables
  • Edge protection
  • Available
  • Ordered
  • In transit
  • Short
  • Rejected
  • Substitute proposed

17

Manpower Must Follow the Loading Sequence

Planning Inputs

  • Number of cargo units
  • Cargo sequence
  • Multiple work fronts
  • Crane cycle
  • Hold / deck
  • Day / night work
  • Hot work
  • Weather
  • Survey hold points
  • Sailing deadline

Execution Roles

No fixed labour ratio is applied to a job before the cargo and sequence are known.

  • Field supervisor
  • Lashing workers
  • Welders where required
  • Fitters
  • Material handling team
  • Safety / fire watch where required

18

How SVC Marine Executes a Cargo Securing Job

  • Packing list
  • Drawings
  • Weight
  • Dimensions
  • COG
  • Photos

Securing Basis

  • Vessel requirement
  • Cargo Securing Manual
  • Engineering plan
  • Survey requirement
  • Hot work

Material Planning

  • Chains
  • Wires
  • Shackles
  • Turnbuckles
  • Dunnage
  • Chocks
  • Steel
  • Tools

Manpower Planning

  • Workers
  • Supervisors
  • Welders
  • Shift
  • Work fronts

Cargo Positioning

  • Stowage position
  • Orientation
  • Support
  • Clearance
  • Access

Dunnage & Chocking

  • Support installed
  • Load distribution checked
  • Movement restraint installed

Lashing / Sea Fastening

  • Chains
  • Wires
  • Turnbuckles
  • Stoppers
  • Welded structures where permitted

Final Check & Adjustment

  • Chief officer
  • Master
  • Surveyor
  • MWS
  • Client
  • Adjust or tighten as required

Evidence & Completion

  • Completed securing
  • Material
  • Photographs
  • Outstanding comments
  • Final status

19

First Installation Is Not Always the Final Condition

Lashings Are Re-Checked After

  • Cargo settles
  • Adjacent cargo is loaded
  • Dunnage compresses
  • Vessel condition changes
  • Survey inspection
  • Final loading completion

Final Actions

The field team checks and adjusts the lashings before handover. The vessel carries out the applicable checks during the voyage.

  • Chain tension check
  • Turnbuckle adjustment
  • Wire tightening
  • Chock review
  • Stopper review
  • Final photograph

20

When Is the Securing Work Complete?

Support

Dunnage and support installed.

Movement Restraint

Chocking and blocking completed.

Sea Fastening

Welding and stoppers completed where applicable.

Responsible Review

Master, chief officer, surveyor, MWS or client comments closed where applicable.

Final Status Applied

SVC Marine does not independently approve cargo for sea passage. Completion reporting records what was executed and what remains open; acceptance rests with the responsible vessel, survey or appointed parties.

  • Work complete
  • Adjustment required
  • Survey comment open
  • Vessel comment open
  • Material shortage
  • Ready for final acceptance

21

Cargo Securing Should Be Documented

Photographic Evidence

  • Cargo before securing
  • Dunnage
  • Chocking
  • Lashing connections
  • Turnbuckles
  • Shackles
  • Welded stoppers
  • Sea-fastening structure
  • Cargo overview
  • Port / starboard arrangement
  • Final condition

Completion Report

Client cargo drawings and confidential shipment documents are not published without written permission.

  • Cargo
  • Location
  • Date
  • Work scope
  • Manpower
  • Material
  • Progress
  • Comments
  • Completion photographs

22

Securing Work Continues at Discharge

De-Lashing and Sea-Fastening Removal

Hot work and vessel approval remain applicable at discharge. De-lashing at the discharge port is not automatically included in a loading-port quotation unless separately agreed.

  • Chain removal
  • Wire removal
  • Turnbuckle removal
  • Timber removal
  • Chock removal
  • Cutting temporary stoppers
  • Removing sea-fastening steel
  • Grinding temporary welds
  • Local deck restoration
  • Material collection

23

Securing Must Protect the Cargo as Well as Restrain It

Damage Risks

  • Chain contact
  • Wire cutting into paint
  • Excessive local pressure
  • Welding heat
  • Grinder sparks
  • Timber damage
  • Hydraulic hose damage
  • Glass damage
  • Coating damage
  • Water exposure
  • Edge protection
  • Soft padding
  • Timber separation
  • Heat shields
  • Spark containment
  • No-weld zones
  • Protected lashing routes

24

What Commonly Goes Wrong During Cargo Lashing?

  • Risk
  • Impact
  • Corrective action

Cargo Information Risk

  • Wrong weight
  • Missing COG
  • Late drawing
  • Changed cargo orientation

Material Risk

  • Insufficient chain
  • Wrong turnbuckle
  • Missing shackles
  • Timber shortage
  • Late steel material

Vessel Risk

  • Securing point unsuitable
  • Deck restriction
  • Chief officer rejects arrangement
  • Cargo position changed

Hot Work Risk

  • Permit delayed
  • Welding prohibited
  • Fire-risk area
  • Coating concern

Schedule Risk

  • Cargo arrives late
  • Loading sequence changes
  • Crane delay
  • Weather
  • Sailing deadline

Quality Risk

  • Loose lashings
  • Poor chocking
  • Bad weld
  • Cargo contact damage
  • Rework

25

Cargo Securing Executed in the Field

Project Cargo Lashing at Dung Quat

Published SVC Marine field record of project cargo lashing work carried out at Dung Quat, Vietnam.

Project Cargo Lashing Case Study at Dung Quat

Further Field Records

  • Case Studies
  • Recent Transactions

26

Cargo Lashing & Securing Across Vietnam

Locations

  • Son Duong
  • Vung Ang
  • Dung Quat
  • Nghi Son
  • Hai Phong
  • Hon Gai
  • Da Nang
  • Ho Chi Minh City
  • Cai Mep - Thi Vai
  • Shipyards
  • Fabrication yards
  • Industrial zones

Attendance Depends On

Son Duong and Vung Ang are the main manpower base. Mobilisation elsewhere is planned against the project schedule, access, materials and available workforce.

Related port routes: Shipping from Vung Ang Port and Shipping from Dung Quat Port.

  • Mobilisation
  • Access
  • Cargo
  • Materials
  • Safety
  • Port rules
  • Working date

27

What to Send for a Cargo Securing Quotation

Cargo

  • Description
  • Number of units
  • Dimensions
  • Gross weight
  • Total weight
  • COG
  • Packing list
  • Photos
  • Drawings

Securing Details

  • Cargo securing points
  • Lifting points
  • Approved securing plan if available
  • Sea-fastening drawings
  • MWS requirement
  • Survey requirement

Vessel

  • Vessel name
  • Type
  • Port
  • ETA
  • Loading date
  • Hold / deck
  • Stowage plan
  • Available lashing points
  • CSM requirement where relevant

Materials

  • Chain
  • Wire
  • Turnbuckle
  • Shackles
  • Dunnage
  • Timber
  • Steel
  • Welding consumables
  • Number of shifts
  • Hot work allowed
  • Terminal restrictions
  • Required completion time
  • Survey attendance
  • Required report

28

Why Use SVC Marine for Cargo Lashing in Vietnam?

Field Execution

SVC Marine carries out the commissioned physical securing work on site.

Marine Context

The team understands vessel access, loading sequence, master and chief officer comments and sailing deadlines.

Materials & Fabrication

Selected jobs can combine lashing materials, dunnage, chocking and fabricated sea-fastening work.

Port Captain Connection

Larger operations may be linked with cargo-operation attendance and principal reporting.

Shipping Connection

The same project may connect with vessel chartering, breakbulk or project cargo transport.

29

Execution Must Follow an Accepted Securing Basis

SVC Marine performs physical cargo securing work within the agreed work scope and technical basis.

The vessel master and responsible officers retain vessel command and voyage responsibilities.

Where engineering calculations, Cargo Securing Manual compliance review, deck-strength verification, class approval or Marine Warranty Survey approval are required, these remain with the appropriately appointed responsible parties unless separately agreed.

SVC Marine may follow their requirements and execute the approved field work.

30

Frequently Asked Questions

Does SVC Marine carry out cargo lashing in Vietnam?

Yes. SVC Marine executes selected cargo lashing, securing, dunnage, chocking and sea-fastening work for project cargo, machinery, heavy equipment, steel and breakbulk shipments.

How is the lashing team assigned to a job?

SVC plans the team size and shifts against the cargo units, loading sequence, welding requirements and agreed completion time.

Can SVC Marine lash heavy equipment?

Yes, subject to cargo weight, COG, securing points, vessel arrangement and the approved or agreed securing basis.

Can SVC Marine provide chains and lashing materials?

Selected materials may be sourced and supplied as part of the work package, subject to specification and availability.

Can SVC Marine perform welded sea fastening?

Selected welding and fabricated securing work may be performed where technically appropriate and permitted by the vessel, port or terminal and relevant responsible parties.

Does SVC Marine provide lashing calculations?

Formal securing calculations or sea-fastening engineering should be performed by the appropriately qualified or appointed engineering party where required. SVC Marine can execute the resulting approved field arrangement.

What information is required for a quotation?

At minimum, provide cargo dimensions, weight, quantity, photographs, location, vessel or loading information and the expected working date. COG, drawings and securing plans should be provided where applicable.

Can SVC Marine mobilize workers at Son Duong and Vung Ang?

Yes. This is SVC Marine's strongest lashing manpower base, subject to project schedule, access, safety and workforce allocation.

Can SVC Marine provide dunnage and chocking?

Yes, selected dunnage and chocking materials and work may be included depending on the cargo and scope.

Can SVC Marine carry out lashing onboard?

Yes, subject to vessel access, port or terminal permission, loading sequence and approved securing requirements.

Can SVC Marine follow chief officer or surveyor comments?

Yes. The field team can adjust work according to authorized vessel or appointed survey comments within the agreed scope.

Does SVC Marine certify that the cargo is safe for the voyage?

Not automatically. Physical execution and completion reporting do not replace any required master, engineer, class, MWS or survey approval.

Can SVC Marine perform de-lashing at discharge?

Selected de-lashing and sea-fastening removal may be arranged separately depending on discharge location and scope.

Position · Restrain · Verify

Talk to SVC Marine

Please provide your company details and the vessel requirement or work scope. Acceptance is subject to verification and confirmation by SVC Marine.