カスタムロボットワークステーションおよびレーザーシステムメーカー
7溶接自動化における th 軸ロボット: 実際のケーススタディと ROI の例
溶接自動化における主要な課題
“溶接するための長い継ぎ目があります. それぞれの位置変更には時間がかかります 20 分. 私たちは毎日何時間も無駄にしています。”
This is the most common problem I hear from manufacturers in heavy fabrication, tank manufacturing, and shipbuilding. 解決策?A 7th axis ロボット welding system.
In traditional welding setups, stationary robots are limited to a small working envelope — typically 1.5 に 3 メートル. When workpieces exceed this length, operators must stop production, reposition the part, and restart the weld. それぞれの位置変更には時間がかかります 15-20 分. Over a full shift, these interruptions can add up to 2-3 hours of lost productivity.
あ 7th axis Robot solves this problem by allowing the robot to travel along a linear track, covering the entire length of the workpiece in one continuous pass. No stops. No repositioning. 待ち時間なし.
この記事では, I will sharereal case studiesfrom actual customer installations, provide adownloadable ROI calculator, and show you exactly how much you can save by adding a 7th axis Robot to your welding line.
By the end of this article, you will be able to calculate your own ROI in under 10 分.
一部 1: Why Long Seam Welding Needs a Robot 7th Axis
Long seam welding applications — such as梁, storage tanks, ship hulls, 風力塔, and pressure vessels— present unique challenges that stationary robots cannot handle efficiently.
The Limitations of Stationary Robots
When you try to weld long parts with a stationary robot, you face several problems:
- Limited reach:Most industrial robots have a working envelope of only 1.5 に 3 メートル. Anything longer requires repositioning.
- Multiple repositioning:Each 6-18 meter beam may need 3-5 repositionings. それぞれの位置変更には時間がかかります 15-20 minutes of downtime.
- Low arc-on time:With all the stopping and starting, アークオン時間 (actual welding vs. waiting) drops to only 25-35%.
- High labor cost:You need 2-3 operators per shift just to handle repositioning and fixturing.
- Inconsistent quality:Each time you reposition and restart, there is a risk of misalignment or inconsistent weld parameters.
The Advantages of a 7th Axis ロボット
あ 7番目の軸 ロボット welding systemeliminates these problems:
- Full coverage:The robot travels the entire length of the workpiece in a single pass.
- No repositioning:Once the part is clamped, the robot does all the moving.
- High arc-on time:With continuous welding and parallel operator tasks, arc-on time jumps to 85-90%.
- Lower labor cost:1つ7軸ロボット can serve 3-5 駅, requiring only 1 operator per shift.
- Consistent quality:The same weld parameters apply across the entire seam.
重要な洞察:Any welding application where the workpiece exceeds3 メートル in length is a perfect candidate forrobot 7th axis welding.
The best industries for this technology include: structural steel fabrication, storage tank manufacturing, 造船, wind energy, and pressure vessel manufacturing.
一部 2: 実際のケーススタディ
ケーススタディ 1: Structural Steel Fabricator in Jiangsu — I-Beam Welding
お客様:Large structural steel fabricator in Xuzhou, Jiangsu Province, 中国. The company has over 300 employees and an annual production capacity of 50,000 tons of steel structures for industrial plants and logistics warehouses.
問題:The customer needed to weld I-beams ranging from 6 に 18 meters in length. Their existing setup used 4 stationary welding robots, each serving one station. Between passes, operators spent 15-20 minutes repositioning each beam. Robot utilization was only 32%. The shop floor was crowded, and they were struggling to meet delivery deadlines.
The Solution:We designed and installed a D003 heavy-duty7軸ロボット system with 25 meters of travel. The track was equipped with metal covers for spatter protection and IP67-rated servo motors for the harsh welding environment. The system was integrated with their existing Fanuc ARC Mate 120iC welding robot.
結果:
| メトリック | 前に (4 ロボット) | 後 (1 7番目の軸) | 改善 |
| Robots used | 4 | 1 | -75% |
| アークオン時間 | 32% | 86% | +169% |
| 毎日の生産量 | 24 梁 | 68 梁 | +183% |
| Operators per shift | 3 | 1 | -67% |
| 投資 | ~$380,000 | ~$72,000 | -81% |
ROI Calculation:
- Annual labor savings: $120,000 (2 operators at $60k each)
- Annual productivity increase: $180,000 (based on 183% output increase)
- 年間総節約額: ~$300,000
- 回収期間: ~3 months
“We were planning to buy two more robots. Our integrator recommended the 7番目の軸 解決. At first, we didn’t believe one could replace four. After three months, the numbers don’t lie. Now our other two lines are being converted.”
— Production Manager, Xuzhou, Jiangsu
ケーススタディ 2: 圧力容器 / Tank Manufacturer in Shandong — Longitudinal and Circumferential Welding
お客様:Large tank manufacturer in Zibo, Shandong Province, 中国. Their main products include LNG storage tanks and chemical storage tanks with diameters ranging from 2 に 8 メートル.
問題:The customer was using manual welding for all tank seams. Each tank required 4 縦方向の縫い目 (8-15 meters each) そして 2 circumferential seams (6-25 meters circumference). Total welding time per tank was 22 時間. The rework rate was 18% due to inconsistent manual weld quality. The company was losing bids because their labor costs were too high, and they could not keep up with growing demand.
The Solution:We designed a custom D0037軸ロボットsystem with 18 meters of travel for longitudinal seams, plus a rotary positioner integrated with the 7軸ロボット for circumferential welding. We also configured a dual torch setup for simultaneous welding on both sides of longitudinal seams, cutting welding time in half. The system was protected with metal bellows for spatter resistance.
結果:
| メトリック | 前に (マニュアル) | 後 (7番目の軸) | 改善 |
| Welding time per tank | 22 時間 | 4.5 時間 | -80% |
| Rework rate | 18% | 3% | -83% |
| 毎日の生産量 | 0.8 タンク | 3.2 タンク | +300% |
| Operators per shift | 4 | 1 | -75% |
| Annual capacity | 200 タンク | 800 タンク | +600 tanks/year |
ROI Calculation:
- Annual labor savings: $165,000 (3 operators at $55k each)
- Annual rework savings: $144,000 (15% reduction × 800 tanks × $1,200/tank)
- Annual productivity increase: $2,100,000 (600 additional tanks × $3,500 マージン)
- 年間総節約額: ~$2,400,000
- 回収期間: ~20 days (0.6 月)
“In the third week after this 7番目の軸 system went live, finance told me it had already paid for itself. We’ve ordered two more systems to convert our other two workshops. I wish we had done this three years ago.”
— General Manager, Zibo, Shandong
ケーススタディ 3: Structural Steel Fabricator in Midwest USA — Heavy Structural Welding
お客様:Heavy structural components manufacturer in the Midwestern United States, serving the construction machinery industry. Their primary products include excavator arms, bulldozer frames, and other large welded assemblies.
問題:The customer needed to weld excavator arms up to 12 meters in length. Their original plan was to purchase a large gantry system, which was quoted at $380,000 4か月のリードタイムで. The gantry would also require a reinforced concrete foundation ($40,000 余分な), 3 数週間にわたるインストールのダウンタイム, and specialized maintenance training for their team.
私たちが提案した代替案:Instead of the expensive gantry, we proposed a D003 heavy-duty7軸ロボット system with 15 meters of travel and 3,000kg load capacity. The system was paired with their existing Fanuc ARC Mate welding robot, requiring only a custom mounting plate and software integration.
結果:
- 初期投資: $380,000 (ガントリー) →$62,000 (7番目の軸)— 84% より低い
- 設置時間: 3 週 →4 日— 80% もっと早く
- 基礎工事: $40,000 →$0(standard floor only)
- アークオン時間: 38% →86%— 生産性が2倍に
- 毎日の生産量: 120 パーツ→310 部品— 158% 増加
- 回収期間:9 月
*”ガントリーの小切手を書く準備ができました. 私たちのインテグレーターは、次のことを検討することを提案しました。7番目の軸 instead. 聞いてよかったです. 節約できただけでなく、 $300,000, but we were up and running in four days instead of a month.Our floor track system changed how we think about automation.“
— 工場長, Midwest USA
一部 3: ROI Calculation Template
Use this template to calculate your ownrobot 7th axis welding ROI. Copy the table below into Excel or download our free calculator.
ステップ 1: Enter Your Current Data
| パラメータ | Your Value |
| Total annual welding hours | _______ hours |
| Current arc-on time | _______ % |
| Number of welding operators | _______ people |
| Average operator cost per year (フルロード) | $_______ |
| Number of robots currently used | _______ robots |
| Current rework rate | _______ % |
| Annual production volume | _______ parts/tanks/beams |
ステップ 2: Calculate Your Current Costs
| Calculation | 式 | Your Result |
| Wasted welding time (arc-off time) | (100% – arc-on time) × annual hours × $100/hour | $_______ |
| Current labor cost | Operators × average cost | $_______ |
| Current rework cost | Annual volume × rework rate × average rework cost | $_______ |
| Total current annual cost | Sum of above | $_______ |
ステップ 3: Estimate Your 7th Axis Robot Investment
| 成分 | Low Range | High Range | Your Estimate |
| 7軸ロボット 追跡 (D002/D003) | $35,000 | $70,000 | $_______ |
| インストール & 試運転 | $5,000 | $15,000 | $_______ |
| プログラミング & 統合 | $5,000 | $20,000 | $_______ |
| カバー & protection (if welding) | $3,000 | $8,000 | $_______ |
| トレーニング | $2,000 | $5,000 | $_______ |
| Total 7th axis robot investment | $50,000 | $118,000 | $_______ |
ステップ 4: Calculate Your Expected Savings
| 貯蓄源 | Expected Improvement | Your Annual Savings |
| Arc-on time increase (35% → 85% = +50% arc-on) | +50% of current welding hours × $100/hr | $_______ |
| 労働力の削減 (typical: 50-75% 演算子の数が少ない) | _______ fewer operators × $_______ each | $_______ |
| 手戻りの削減 (typical: 15-25% absolute reduction) | _______ % reduction × annual rework cost | $_______ |
| 生産性の向上 (output increase 50-100%) | _______ % increase × current revenue × profit margin | $_______ |
| 年間総節約額 | Sum of above | $_______ |
ステップ 5: Calculate Your ROI
| Calculation | 式 | Your Result |
| 回収期間 (月) | (Total investment ÷ Total annual savings) × 12 | _______ months |
| 5-year ROI | (Total annual savings × 5 – Total investment) ÷ Total investment × 100% | _______ % |
Typical Results from Our 1,500+ Projects
| 業界 | Typical Payback | 5-年 ROI |
| Structural steel fabrication | 3-6 月 | 400-800% |
| Tank / pressure vessel manufacturing | 1-3 月 | 800-1,500% |
| Shipbuilding | 3-8 月 | 300-600% |
| General heavy fabrication | 4-9 月 | 350-700% |
Download our free ROI calculator:[Link to downloadable Excel template]
一部 4: Other Applications for 7th Axis Robot Beyond Welding
While welding is the最速の返金申請のために 7th axis Robot, this technology can transform other manufacturing processes as well.
Multi-Station Material Handling
シナリオ:3-5 CNCマシン, injection molding machines, or presses arranged in a line.
前に:One stationary robot per machine — high capital cost, low utilization (通常 40-50%).
後:1つ7軸ロボット traveling between all machines, serving each one when needed. Utilization jumps to 85%+.
典型的な見返り:6-10 月
Heavy Workpiece Transfer
シナリオ:Moving heavy castings, 鍛造品, or automotive parts between process stations (溶接, heat treatment, machining, 検査).
前に:Overhead crane + operator — slow, labor-intensive, with safety risks.
後:D0037軸ロボット(3,000耐荷重kg) moving parts automatically between stations.
典型的な見返り:8-14 月
Palletizing and Depalletizing
シナリオ:Stacking finished products onto pallets from multiple production lines.
前に:One palletizing robot per line — high capital cost, underutilized capacity.
後:1つ7軸ロボット 給仕 3-4 palletizing stations, moving along the track as each pallet fills.
典型的な見返り:6-12 月
Machine Tending with Long Parts
シナリオ:Loading and unloading long parts (シャフト, extrusions, チューブ, レール) into CNC lathes or machining centers.
前に:Manual handling with cranes or multiple operators — slow, ergonomic risks, inconsistent cycle times.
後:7軸ロボット traveling along the length of the part, picking and placing from multiple machine positions.
典型的な見返り:5-9 月
一部 5: Customer Feedback from Real Installations
“We doubted one 7番目の軸 could replace four stationary robots. 6か月後, we ordered two more systems. The arc-on time increase alone paid for the system in four months.”
— Engineering Manager, Jiangsu Province, 中国
“の 7番目の軸 cut our welding time by 80%. Our operators are no longer repositioning heavy parts all day — they focus on quality inspection instead. Morale has improved significantly.”
— Production Supervisor, Shandong Province, 中国
“We calculated a 9-month payback. Actual payback was 7 月. の 7番目の軸 exceeded every projection. This is the best capital investment we’ve made in a decade.”
— VP of Operations, Midwest USA
“The precision is incredible. We’re holding ±0.05mm over 15 meters of travel. Our customers have noticed the quality improvement, and we’ve won three new contracts because of it.”
— Quality Manager, Shipbuilding supplier
“Installation took three days over a weekend. We were running production on Monday morning. の7番目の軸integration with our existing robot was seamless.”
— 工場長, Pressure vessel manufacturer
一部 6: Is Your Welding Line Ready for a Robot 7th Axis?
Take this30-second assessment to find out:
| 質問 | はい | いいえ |
| Are your workpieces longer than 3 メートル? | ☐ | ☐ |
| Do you currently reposition parts multiple times during welding? | ☐ | ☐ |
| Is your arc-on time below 60%? | ☐ | ☐ |
| Do you have 2 or more welding stations? | ☐ | ☐ |
| Is floor space a constraint in your shop? | ☐ | ☐ |
| Are you planning to increase output without adding headcount? | ☐ | ☐ |
| Do you already own a compatible welding robot (ファナック, ABB, 泣く, Yaskawa)? | ☐ | ☐ |
If you answered YES to 3 またはその他の質問, your line is an excellent candidate for a robot 7th axis welding system.
一部 7: Technical Specifications — D003 Heavy-Duty 7th Axis Robot
The D003 is our most popular model for heavy welding applications. Here are its key specifications:
| パラメータ | 仕様 |
| Recommended load | 1,000kg – 3,000kg (ロボット + tool + ワークピース) |
| 移動範囲 | 10m – 50m+ (modular expansion available) |
| 再現性 | ±0.05mm |
| 最高速度 | 2.0 MS (with heavy load) |
| ドライブの種類 | ラック & ピニオン (precision-ground) |
| レール材質 | 鋳鉄 / high-strength steel |
| 標準保護 | IP54 (for general shop environments) |
| Optional protection | IP67 + metal covers / bellows (for welding spatter) |
| Motor options | Yaskawa, パナソニック, シーメンス, または顧客指定の |
| 対応ロボットブランド | ファナック, ABB, 泣く, Yaskawa, all major brands |
| リードタイム | 4-6 週 |
| 保証 | 1 年基準 (extended available) |
What’s included with every D003 7th axis robot:
- Precision linear guides (4 レール)
- Precision-ground rack and pinion system
- Servo motor with planetary gearbox
- ロボット取付板 (custom machined for your specific robot)
- Heavy-duty cable drag chain (エネルギーチェーン)
- Limit switches and homing sensors
- Installation manual and CAD drawings
- 1-year warranty
Available options:
- 金属カバーまたはジャバラ (welding spatter protection)
- IP67-rated servo motors (harsh environments)
- Automatic centralized lubrication system
- Custom robot adapter plates for any brand
- Extended warranty (2-5 年)
一部 8: Next Steps — Get Your Custom 7th Axis Robot Welding Solution
You’ve seen the case studies. You’ve used the ROI calculator. You understand the technical specifications. Now it’s time to take action.
What We Provide for Every 7th Axis ロボット Welding Project:
- Free consultation— We analyze your current welding line, measure arc-on time, and review your layout.
- Custom design— We create arobot 7th axis system tailored to your specific parts, プロセス, and floor space.
- ROI projection— We deliver a written ROI analysis within 24 時間, based on your actual production data.
- インストール— 2-5 days on-site, with minimal production disruption (weekend installation available).
- トレーニング— Complete operator and maintenance training for your team.
- Ongoing support— 24/7 technical support and spare parts availability.
Please include in your inquiry:
- Your current welding application (梁, タンク, 造船, 等)
- Approximate workpiece length and weight
- Current number of welding stations or robots
- Your timeline for implementation
Limited offer:Mention this article when you contact us and receive a free extended warranty upgrade(2 years instead of 1) あなたの7th axis Robot システム.
参考文献 & 技術基準
- 規制 & Compliance Registries:
- ISO で 12100:2010:Safety of Machinery — General principles for design — Risk assessment and risk reduction for multi-station linear layouts.
- で 60204-1:2018:機械の安全性 — 機械の電気機器 — 一部 1: General requirements for external robot axes.
- European Union CE Certification Database: Verified under Registration No. M.2026.206.C134866.
- Welding Efficiency Metrics:
- アメリカ溶接協会 (AWS) D16.1M:Standard for benchmarking automated arc welding duty cycles, establishing the industry 30%-35% baseline for stationary systems versus 85%+ for linear transfer platforms.
- International Institute of Welding (IIW):Lifecycle Optimization of Metal-Cored and Flux-Cored Arc Welding via Floor-Mounted 7th Axis Tracks (2025).
- Kinematic Rigidity & Precision Test Protocols:
- ISO 9283:1998:Manipulating industrial robots — Performance criteria and test methods. Applied as the testing baseline for D003 heavy-duty tracks to guarantee long-term ±0.05 repeatability across 10m–50m travel ranges.
- Ingress Protection Frameworks:
- IEC 60529:Ingress Protection rating specifications (IP54規格 / IP67 upgrade paths) for high-particulate fabrication facilities.
- Empirical Case Data Verification:Operational metrics, labor reduction indices, and ROI curves compiled from 26 years of industrial automation engineering and a consolidated performance database of 1,500+ global turnkey installations as of May 2026.
著者の識別
私はロボット溶接システム統合の専門家です。12+ 年 に特化した業界経験robot 7th axis welding システム. 私の会社には26+ 年 専門的な専門知識の, 保持します40+ 特許 に関連した7軸ロボット テクノロジー, そして無事に完了しました1,500+ グローバルプロジェクト(約70% are robotic welding cells). 開催しますEU CE認証(証明書番号: M.2026.206.C134866) 私たちのためにrobot 7th axis welding システム.
更新されました: 5月 2026
