777 Ergonomic Mesh Office Chair with 4D Lumbar Support
Quick answer: Model 777 is an ergonomic mesh office chair for B2B buyers who need a clear 4-direction lumbar support story, 2D headrest comfort, flip-up armrests, and practical 504 pcs/40HQ loading. It fits distributors, importers, corporate office programs, coworking spaces, and project buyers that need more function than a basic budget task chair.
For sourcing, check lumbar movement, headrest fit, armrest alignment, mesh tension, seat support, gas lift movement, PP base balance, PU caster rolling, carton protection, and sample-to-bulk consistency. Compare the wholesale office chair category, 777-2 budget mesh office chair, and 999 ergonomic mesh office chair before confirming samples.
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Ergonomic Office Chair Supplier – Designed for B2B office chair sourcing and project supply. -
4D Lumbar Support – 4-direction lumbar adjustment supports different sitting needs. -
2D Headrest and Flip-Up Arms – Practical comfort features for office users. -
Wholesale Loading Data – MOQ 100 pcs, 504 pcs/40HQ loading.
Best For: 777 fits office furniture distributors, project buyers, importers, corporate offices, coworking spaces, manager rooms, and mid-level ergonomic office chair programs.
Buyer Decision Notes: Choose this model when your market needs visible lumbar adjustment, 2D headrest comfort, flip-up armrest function, and better ergonomic positioning without moving into a heavier premium chair. Compare 779 mesh office chair for 3D armrest positioning, 998-B high-back mesh office chair for a taller back profile, and 777-2 for higher loading efficiency.
777 Office Chair Basic Specifications
| Model | 777 | Product Type | Ergonomic Mesh Office Chair |
| Fabric | Mesh | Frame | Back + Seat Plastic |
| Armrest | Flip-Up Armrests | Lumbar | 4-Direction Adjustable Lumbar |
| Headrest | 2D Adjustable Headrest | Mechanism | 17 Butterfly |
| Gas Lift | 3# 100mm | Base | 330 A# PP Base |
| Castors | A# PU Castors | Packing Size | 64 x 30 x 60.5 cm |
| MOQ | 100 pcs | 40HQ Loading | 504 pcs |
777 Features – 4D Lumbar Support, Flip-Up Arms, 2D Headrest
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4D Lumbar Support – 4-direction lumbar adjustment gives distributors a clear ergonomic selling point. -
Practical Headrest and Armrests – 2D adjustable headrest and flip-up armrests support daily office use. -
Reliable Mid-Level Configuration – 17 butterfly mechanism, 3# gas lift, PP base, and PU castors provide a balanced structure. -
Wholesale Order Planning – MOQ 100 pcs and 504 pcs/40HQ help importers plan purchasing and freight cost. -
Office Chair Supplier Support – Hengyao supports OEM options, carton design, branding, and B2B supply.
Certificate, Testing & Buyer Records
For model 777 bulk orders, buyers can review sample approval notes, appearance checks, lumbar and headrest function, armrest fitting, gas lift movement, mechanism stability, packing photos, labels, spare parts, and shipment documentation. Third-party testing can be arranged for qualified orders according to buyer requirements. 
Model 777 Buyer Evidence
777 Bulk Order Reliability Checks
Model 777 buyers can review factory testing videos and request project-specific inspection records before mass production. For ergonomic office chairs, the key risks are lumbar adjustment failure, loose mechanism movement, unstable base fitting, and sample-to-bulk inconsistency.
Load & Structure CheckFrame, base, gas lift, mechanism, and key load-bearing parts can be checked before shipment to reduce bulk-order failure risk.
Function Durability CheckRecline movement, height adjustment, armrest fitting, caster rolling, and assembly points are reviewed for repeated commercial use.
Third-Party Testing SupportFor qualified bulk orders, third-party testing can be arranged according to buyer requirements, including BIFMA, EN, SGS, or other applicable standards.
Material & Structure Check
Review real factory testing context for chair material comparison, structure control, and bulk-order reliability before sample approval.
Function & Equipment Check
Use factory test clips to discuss mechanism movement, adjustment parts, and daily-use risks with the Hengyao Chair team.
Inspection Evidence for Buyers
Ask for recent production, testing, packing, and loading records for similar chair orders before confirming mass production.
Get 777 Test & Packing Records
Send your chair category, model number, target quantity, and destination market. We can share relevant production, testing, packing, and loading records for similar orders.
B2B Buyer Decision
777 Office Chair Bulk Order Fit
Model 777 is best for buyers who need an ergonomic mesh office chair with a clear lumbar-support story, practical wholesale pricing, and enough comfort features for corporate offices, coworking spaces, manager rooms, and distributor catalogs.
Office Chair Category
Quality Issues Checklist
Request 777 Quote
Best-Fit Buyers
Office furniture distributors, project buyers, importers, corporate furniture programs, coworking suppliers, and online sellers needing a mid-to-high ergonomic mesh chair SKU.
What Makes It Different
777 should be sold around 4D lumbar support, breathable mesh, headrest support, flip-up armrests, 504 pcs / 40HQ loading, and sample-to-bulk consistency checks.
Before Sample Approval
Check lumbar movement, mesh tension, seat support, armrest fixing, gas lift movement, mechanism stability, caster rolling, screw matching, and assembly instructions.
Before Shipment
Confirm carton strength, inner protection, labels, spare parts, destination-market documents, packing photos, and whether third-party testing is needed for your order.
Durability CheckReview repeated adjustment points, seat support, frame fitting, and component stability before mass production.
Safety CheckGas lift, base, caster, mechanism, screw and assembly parts should be checked against the approved sample and buyer requirement.
Stability CheckBulk orders should keep consistent sitting feel, mesh tension, carton protection, labels and spare parts from batch to batch.
Buyer note: send model 777, quantity, destination market, target price level, color or logo request, and packing requirement. Hengyao Chair can discuss product specs, sample checks, packing details, and third-party testing arrangements for qualified bulk orders. Compare with 779 mesh office chair or 999 ergonomic mesh office chair if your market needs a different function position.
Why Wholesale Buyers Choose Model 777
Model 777 is useful when buyers need a mesh office chair with a visible ergonomic selling point. The value is not only the 4-direction lumbar support, 2D headrest, flip-up arms, and breathable mesh. The real B2B question is whether these adjustable parts feel stable after repeated daily use.
Before sample approval, check lumbar movement, mesh rebound, headrest fitting, armrest screw matching, gas lift movement, PP base balance, PU caster rolling, manual clarity, and carton protection. Buyers can compare 779 mesh office chair, 998-A molded foam mesh office chair, 998-B high-back mesh office chair, and 999 ergonomic mesh office chair.
Years of Industry Expertise
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Sample Development Engineer
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Order delivery days
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Hengyao – Wholesale Office Chair Production Process
1. Tube Cutting
Metal tubes are prepared for the office chair frame and structural parts according to the confirmed sample and production drawing.
2. Drilling
Connection holes are processed for screws, armrest parts, mechanism fitting, and other assembly points that affect final chair stability.
3. Tube Trimming
Edges and burrs are removed so frame parts fit more cleanly during welding, assembly, and final inspection.
4. Welding
Frame parts are welded according to the chair structure, helping keep key load-bearing areas stable before surface treatment.
5. Polishing
Welded areas are polished to remove rough points and prepare the frame for coating and later assembly.
6. Surface Cleaning
The frame surface is cleaned before coating so the finish is more stable and easier to inspect.
7. Powder Coating
A protective coating is applied to the metal frame surface to improve appearance and basic surface protection.
8. Finish Check
The coated frame is checked for surface finish, visible defects, color consistency, and preparation for assembly.
9. Quality Inspection
Appearance, function, mechanism movement, armrest fitting, gas lift movement, and packing details are checked against the approved sample.
10. Export Packing
Office chairs are packed with cartons, protective materials, hardware kits, labels, and instructions according to order requirements.
11. Loading Preparation
Finished office chair cartons are stored and prepared for shipment after packing review and order documentation are confirmed.
Fully Customized Manufacturer
Sourcing – sampling – production – quality inspection – export packing – delivery support for B2B office chair programs.
How to Choose Model 777 for Ergonomic Mesh Office Chair Bulk Orders
Model 777 should be evaluated as a mid-level ergonomic mesh office chair for distributors and project buyers. It is stronger than a basic budget task chair because it adds 4-direction lumbar support, 2D headrest comfort, flip-up armrests, and 504 pcs/40HQ loading.
Before confirming a bulk order, check lumbar adjustment range, headrest height, mesh tension, seat support, armrest stability, 17 butterfly mechanism movement, 3# 100mm gas lift movement, PP base balance, PU caster rolling, carton protection, and sample-to-bulk consistency.
Check 4-Direction Lumbar Movement and User Fit
The main reason to choose 777 is the 4-direction adjustable lumbar support. Buyers should check whether the lumbar part moves smoothly, holds position after adjustment, and supports different user heights without creating a hard pressure point.
This matters for corporate offices, coworking spaces, training rooms, and distributor catalogs where end users compare comfort quickly. A sample that feels good for one person may still fail if the lumbar range is too limited for the target market.
Check 2D Headrest, Flip-Up Arms, and Daily Office Function
Reliable choice: stable 4D lumbar, 2D headrest, and flip-up armrests
For ergonomic office chair orders, complaints often come from loose headrests, uneven armrests, weak lumbar movement, or adjustment parts that feel different from the sample. Ask for close-up function checks, sample notes, and pre-shipment videos before mass production.
Avoid pitfalls: weak lumbar hold, loose arms, unclear manuals, or poor packing
Do not judge 777 only by product photos. Check lumbar movement, 2D headrest fit, flip-up armrest alignment, 17 butterfly mechanism movement, gas lift travel, PP base balance, PU caster rolling, screw matching, carton marks, and spare parts before shipment.
Check Mesh Tension, Seat Support, and Long-Hour Comfort
777 uses a 2D adjustable headrest, flip-up armrests, 17 butterfly mechanism, 3# 100mm gas lift, 330 A# PP base, and A# PU castors. Buyers should check these parts as one office seating system, not as separate feature names on a catalog page.
Ask for close-up sample photos or short videos showing armrest movement, headrest adjustment, gas lift travel, mechanism movement, caster rolling, screw matching, and final assembly points. This reduces the risk of loose parts or inconsistent user feedback after delivery.
Check 504 pcs/40HQ Loading, Carton Size, and Manual Clarity
For B2B pricing, confirm the 64 x 30 x 60.5 cm packing size, 504 pcs/40HQ loading, carton strength, hardware kit, spare parts, labels, assembly manual, and inspection records before final quotation.
For model comparison, review 777-2 budget mesh office chair for cost-sensitive programs, 779 mesh office chair for 3D flip-up armrest positioning, 998-A molded foam mesh office chair, 998-B high-back mesh office chair, 999 ergonomic mesh office chair, 999-1 reclining mesh office chair, 703 compact fabric office chair, and the office chair category.
Ask for 777 Ergonomic Office Chair Advice
Resolve your confusion and difficulties
Do You Worry About Cash Flow Issues With Wholesale Chair Purchases?
After becoming long-term partners,90-day payment period, balance paid at the port. We offer a 90-day payment option after financial review,helping you manage cash flow efficiently and ease financial pressure.
Do You Worry About Losing Customers Due To Quality?
Defined QC checkpoints, sample confirmation, and documented packing requirements help buyers reduce bulk-order risk. Hengyao Chair supports material checks, function checks, carton review, and shipment communication before delivery.
Do You Need Clear Loading Data for Mid-Level Mesh Chairs?
777 includes a 504 pcs/40HQ loading reference. Buyers can compare packing size, freight cost, landed cost, and mixed-model order planning before confirming an ergonomic mesh office chair program.
How to maintain your office chair
Follow this care guide to keep the 777 ergonomic mesh office chair clean, stable, and suitable for daily office, workstation, manager room, and coworking space use.
Regular Cleaning
Clean the mesh or fabric surface with a soft cloth or suitable fabric cleaner, and avoid harsh chemical cleaners. For commercial office use, regularly check the gas lift, screws, armrests, castors, and base connection to keep the office chair stable during daily operation.
Regularly inspect the connecting screws
Over time, the screws might loosen. So, let’s check if they are loose.
Avoid Direct Sunlight
Prolonged direct sunlight may fade mesh or fabric surfaces. For showrooms or project sites, keep chairs away from long direct sunlight where possible.
Proper use of the office chair
Use the chair for normal seated office work only. Do not stand on the chair, sit on the armrests, jump on the seat, overload the mechanism, or use the chair as a ladder.
Maintenance of the lifting/rotating function
Every month, apply a small amount of silicone-based lubricant (do not use engine oil) at the rotating shaft and the pedal ring to ensure smooth operation.
Avoid frequent violent lifting and lowering, and single-point heavy pressure to prevent damage to the air pressure rods.
Metal (ironwork / stainless steel / electroplated)
Dry off the water stains. In damp environments, apply a thin layer of anti-rust oil / sewing oil regularly.
Remove rust: For small rust spots, soak them in oil and then wipe them off. For severe rust, seek professional treatment.
Valuable Office Chair Partner
Hengyao Chair provides factory-direct office chairs and custom seating solutions for importers, distributors, office furniture brands, project contractors, retailers, and commercial workspace buyers. 
David Thomas
Philippines
For B2B buyers, assembly instructions should be checked before shipment. Ask for a clear manual, hardware-kit list, carton label sample, and spare-parts plan before confirming bulk office chair orders. 
Isabella Jackson
Australia
Before shipment, confirm the commercial invoice, packing list, carton marks, loading photos, and destination-market document requirements. Clear document responsibility helps buyers avoid customs and receiving delays. 
Michael Kingston
Spain
Reliable wholesale office chair supplier
FAQ
Here are common questions buyers ask before ordering model 777 office chairs in bulk. Related comparison paths: office chair category, 777-2 budget mesh office chair, 779 mesh office chair, 998-A molded foam mesh office chair, 998-B high-back mesh office chair, 999 ergonomic mesh office chair, and 703 compact fabric office chair.
What is the main selling point of model 777?
The main selling point is 4-direction adjustable lumbar support, supported by 2D headrest comfort, flip-up armrests, 17 butterfly mechanism, 3# 100mm gas lift, PP base, PU castors, and 504 pcs/40HQ loading reference.
What is the 40HQ quantity?
Model 777 supports 504 pcs per 40HQ container under the current packing plan, based on a 64 x 30 x 60.5 cm packing size. Buyers should confirm carton strength, hardware kits, labels, and loading plan before shipment.
Who should source model 777?
It is suitable for office furniture distributors, project buyers, importers, and wholesale office chair suppliers.
Where can 777 be used?
Model 777 fits corporate offices, manager rooms, coworking spaces, training rooms, office furniture distributor programs, and B2B project seating orders that need a clear ergonomic support story.
What materials are used for 777?
Model 777 uses mesh fabric, back + seat plastic frame, flip-up armrests, 4-direction adjustable lumbar support, 2D adjustable headrest, 17 butterfly mechanism, 3# 100mm gas lift, 330 A# PP base, A# PU castors, 64 x 30 x 60.5 cm packing size, and 504 pcs/40HQ loading reference.
Why choose Hengyao as a wholesale office chair supplier?
Hengyao Chair is a China office chair supplier focused on ergonomic mesh office chairs, sample confirmation, OEM/ODM discussion, packing review, and export-ready seating supply.
What payment structure and shipping terms apply?
For 777 orders, buyers can discuss target quantity, sample confirmation, lumbar support requirements, packing details, carton labels, shipment documents, FOB Shanghai or Ningbo options, and spare-parts support before bulk production.
The main selling point is 4-direction adjustable lumbar support, supported by 2D headrest comfort, flip-up armrests, 17 butterfly mechanism, 3# 100mm gas lift, PP base, PU castors, and 504 pcs/40HQ loading reference.Model 777 supports 504 pcs per 40HQ container under the current packing plan, based on a 64 x 30 x 60.5 cm packing size. Buyers should confirm carton strength, hardware kits, labels, and loading plan before shipment.It is suitable for office furniture distributors, project buyers, importers, and wholesale office chair suppliers.Model 777 fits corporate offices, manager rooms, coworking spaces, training rooms, office furniture distributor programs, and B2B project seating orders that need a clear ergonomic support story.Model 777 uses mesh fabric, back + seat plastic frame, flip-up armrests, 4-direction adjustable lumbar support, 2D adjustable headrest, 17 butterfly mechanism, 3# 100mm gas lift, 330 A# PP base, A# PU castors, 64 x 30 x 60.5 cm packing size, and 504 pcs/40HQ loading reference.Hengyao Chair is a China office chair supplier focused on ergonomic mesh office chairs, sample confirmation, OEM/ODM discussion, packing review, and export-ready seating supply.For 777 orders, buyers can discuss target quantity, sample confirmation, lumbar support requirements, packing details, carton labels, shipment documents, FOB Shanghai or Ningbo options, and spare-parts support before bulk production.
Related Sourcing Pages for B2B Buyers
Before comparing samples or confirming a bulk order, use these related Hengyao Chair pages to check the wider office chair category, buyer questions, project context, and quotation path.
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