SVC Marine — Cargo Securing Work Package
Cargo Lashing & Securing Services in 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.
Our field capability includes a lashing workforce of nearly 200 people around the Son Duong – Vung Ang industrial and port area for selected large cargo operations.
We prepare manpower, tools and securing materials, execute the agreed securing arrangement, follow vessel or survey comments and provide completion evidence before sailing.
shipping@svcmarine.com · +84 988 701 231
- Nearly 200 Workers
- Project Cargo
- Heavy Equipment
- Steel & Breakbulk
- Dunnage & Chocking
- Sea Fastening
Illustrative arrangement
Aft
Port
Stbd
COG
- Chain lashing
- Securing point
- Stopper / chock
- Dunnage
- Centre of gravity
- WeightSupplied by client
- COGRequired
- SupportDunnage
- Fore / aftStopper
- TransverseChain lashing
- Contact areaProtected
- Securing basisTo be confirmed
- Final checkPending
Illustrative securing diagram — not an engineering calculation. Actual arrangement depends on cargo data, vessel structure and the approved securing basis.
Cargo lashing and securing work for a chartered vessel shipment — SVC Marine field team.
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.
Nearly 200 Lashing Workers Around Son Duong – Vung Ang
Son Duong – Vung Ang
SVC Marine maintains access to a lashing workforce of nearly 200 people operating around the Son Duong – Vung Ang industrial and port area. This manpower base allows selected projects to scale beyond a small lashing gang when cargo volume, loading sequence or working window requires larger mobilisation.
Workforce size is not the same as mobilisation size. Crew allocated to any individual job depends on cargo units, working area, loading sequence, vessel, shift pattern, available time, materials, safety, hot work permission and port access.
Small Work Package
- Localised machinery
- Few cargo units
- Limited securing
Standard Project Cargo Gang
- Multiple units
- Dedicated supervisor
- Lashing crew
- Material team
High-Volume Mobilisation
- Large steel or project cargo parcel
- Multiple work fronts
- Shift-based work
- Large manpower requirement
Crew numbers for each model are confirmed against the actual cargo, loading plan and working window rather than quoted as a fixed ratio.
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 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.
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.
Why Cargo That Looks Stable Can Move at Sea
Forces During Sea Passage
How Cargo Fails
- Friction
- Support
- Blocking
- Chocking
- Lashing
- Sea fastening
This page does not publish generic force coefficients as universal values and does not present securing calculations. Where calculation is required, it is prepared or approved by the appropriately qualified party.
The Cargo Must Sit Correctly Before It Can Be Lashed Correctly
Dunnage and Support Scope
Checked Before Lashing Starts
- Support location
- Cargo base
- Vessel structure
- Contact pressure
- Movement risk
- Drainage
- Removal at discharge
Lashing should not be used to compensate for poor cargo support.
Prevent Movement Before Adding Tension
Chocking and Blocking Methods
Additional Controls for Mobile Equipment
- Wheels
- Tracks
- Suspension
- Steering
- Parking brake
- Movable components
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.
Chain Lashing for Heavy and Industrial Cargo
Components
Checked During Installation
- Arrangement
- Direction
- Angle
- Securing point
- Cargo connection
- Edge contact
- Tension
- Material condition
Where material certification or working load limit information is required, it must be available for review. This page does not publish WLL or SWL figures for any material.
Wire Lashing for Suitable Cargo Arrangements
Components
Execution Considerations
- Wire condition
- Bending
- Edge damage
- Connection method
- Tension
- Cargo surface
- Re-tightening
Clip quantity and spacing follow the applicable standard or manufacturer requirement for the wire in use. Generic figures are not published here.
When Steel Chains Are Not Appropriate
Cargo Types
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.
Welding, Stoppers & Fabricated Sea Fastening
Possible Work
Confirmed Before Work Starts
- Securing drawing
- Vessel approval
- Suitable structural location
- Material
- Welding requirement
- Hot Work Permit
- Access
- Fire watch
- Coating protection
- Survey requirement
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.
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.
Heavy Equipment & Mobile Machinery
Typical Units
Key Controls
Execution
- Wheel or track chocking
- Chain lashing
- Wire lashing
- Boom restraint
- Attachment securing
- Surface protection
- Dunnage
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.
Steel Pipes, Plates, Beams & Fabricated Structures
Cargo Forms
Risks
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.
Project Cargo and Out-of-Gauge Units
Reviewed Before Execution
Complex Cargo May Require
- Engineering calculation
- Sea-fastening drawing
- Transport analysis
- MWS review
- Class review
- Dedicated welding plan
SVC Marine executes the field scope after the required technical basis is established.
A Lashing Plan Fails If the Material Is Wrong or Late
| Register field | What it controls |
|---|---|
| Material |
|
| Specification | Size, grade and type required by the securing basis. |
| Quantity required | Derived from the securing arrangement and cargo unit count. |
| Quantity available | What is physically on site or confirmed for delivery. |
| Condition | New, serviceable, worn or rejected on inspection. |
| Certificate / WLL | Where required by the securing basis or the appointed surveyor. |
| Delivery status |
|
| Installation location | 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.
Manpower Must Follow the Loading Sequence
Planning Inputs
Execution Roles
- Field supervisor
- Lashing workers
- Welders where required
- Fitters
- Material handling team
- Safety / fire watch where required
Nearly 200 workers are available around Son Duong – Vung Ang for selected operations. No fixed labour ratio is applied to a job before the cargo and sequence are known.
How SVC Marine Executes a Cargo Securing Job
-
Cargo Review
- 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
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
- Chain tension check
- Turnbuckle adjustment
- Wire tightening
- Chock review
- Stopper review
- Final photograph
No promise is made that lashings remain correctly tensioned for the entire voyage without vessel monitoring. Voyage-period checks remain a vessel responsibility as applicable.
When Is the Securing Work Complete?
Cargo Position
Correctly positioned.
Support
Dunnage and support installed.
Movement Restraint
Chocking and blocking completed.
Lashings
Installed and tensioned.
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.
Cargo Securing Should Be Documented
Photographic Evidence
Completion Report
- Cargo
- Location
- Date
- Work scope
- Manpower
- Material
- Progress
- Comments
- Completion photographs
Client cargo drawings and confidential shipment documents are not published without written permission.
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.
Securing Must Protect the Cargo as Well as Restrain It
Damage Risks
Controls
- Edge protection
- Soft padding
- Timber separation
- Heat shields
- Spark containment
- No-weld zones
- Protected lashing routes
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
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.
Further Field Records
High-Manpower Cargo Securing Base in Central Vietnam
Why Son Duong – Vung Ang
The Son Duong – Vung Ang cluster combines a deep-water port area with the Vung Ang Industrial Zone, generating heavy industrial cargo, fabrication output, steel, machinery and project cargo requiring vessel loading.
SVC Marine’s lashing manpower base sits inside this cluster, which is what allows selected large cargo operations to be mobilised without importing a crew from another region.
Cargo Generated in the Cluster
Workforce availability is allocated per project. Permanent 24/7 availability of the full workforce is not claimed.
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
- Mobilisation
- Access
- Cargo
- Materials
- Safety
- Port rules
- Working date
Son Duong and Vung Ang are the strongest base. Instant nationwide mobilisation is not offered.
Related port routes: Shipping from Vung Ang Port and Shipping from Dung Quat Port.
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
Execution
- Number of shifts
- Hot work allowed
- Terminal restrictions
- Required completion time
- Survey attendance
- Required report
Why Use SVC Marine for Cargo Lashing in Vietnam?
Real Manpower
Nearly 200 lashing workers around Son Duong – Vung Ang, allocated per project.
Field Execution
SVC Marine executes the physical securing work rather than acting only as a broker.
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.
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.
Where This Page Sits in the SVC Marine Service Chain
Cargo Transport
Port Execution
- Cargo Lashing & Securing — current page
- Port Captaincy & Bunker Survey
- Shipping from Vung Ang Port
- Shipping from Dung Quat Port
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 large is SVC Marine’s lashing workforce?
SVC Marine has access to a lashing workforce of nearly 200 people around the Son Duong – Vung Ang area for selected cargo operations. The actual mobilisation size depends on the job.
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
Need a Cargo Lashing Team in Vietnam?
Send the cargo dimensions, weights, drawings, photographs, COG, vessel details, stowage location, loading date and securing requirement. SVC Marine will review the manpower, materials, dunnage, chocking and field execution required.