FYID-Feiyide

FYID Автоматизированная система сварки трубных решёток | Головки PT40/PT80 с FXT20

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Tube-to-tubesheet orbital welder · φ12–80 mm

PT40 / PT80 Tube-to-Tubesheet Orbital Welder.

Purpose-built TIG orbital heads for tube-to-tubesheet seal welds. PT40 covers φ12–38 mm tube on the FXT20 power source; PT80 covers φ38–80 mm on the FXT40 Pro. Per-quadrant parameter control, auto-indexing between tube positions, and per-joint data log for heat exchanger, boiler, and condenser fabrication.

Choose model

PT40 φ12–38 mm · FXT20

PT80 φ38–80 mm · FXT40 Pro

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Use cases · Shell-and-tube heat exchangers · Power boilers · Condensers · Nuclear steam generators
Delivery confirmed by configuration, production schedule, and logistics
Certifications · CE · ISO 9001
Warranty · 12 months whole-machine

01 / What it is

A purpose-built orbital TIG head for the most repeated weld in a shell-and-tube heat exchanger.

The FYID-Feiyide PT40 and PT80 are dedicated orbital GTAW (TIG) tube-to-tubesheet weld heads for circumferential fillet and groove welds at the joint where a tube end meets the tubesheet face of a shell-and-tube heat exchanger, power boiler, condenser, or nuclear steam generator. This joint — typically called a “tube-to-tubesheet seal weld” — appears hundreds to thousands of times per bundle. Its consistency determines hydrostatic test results, NDE pass rates, and project schedule.

The PT-series head clamps to the tubesheet and rotates the TIG arc around the tube circumference. Unlike an adapted general-purpose orbital head, the PT design holds the arc at a controlled standoff from the joint face regardless of tube projection variation across the tubesheet — the single most common source of arc-length inconsistency in manual tube-to-tubesheet work.

Per-quadrant parameter control addresses thermal asymmetry directly: the PT-series programs peak current, base current, pulse frequency, and travel speed independently for each of the four quadrants per rotation. In a standard triangular-pitch tubesheet, the quadrant closest to the bulk tubesheet metal needs higher current to achieve the same penetration as the quadrant adjacent to the nearest tube hole 5 mm away. A single-parameter program cannot handle both; the PT-series does.

The auto-indexing motor repositions the head to the next tube position after each weld without operator re-clamping. On a 500-tube bundle with 3-minute weld time per joint, auto-indexing saves 20–30 minutes of repositioning per shift. Combined with the per-joint data log indexed by tube row and column, the PT-series converts a labor-intensive manual operation into a repeatable, fully auditable process.

02 / PT40 and PT80 head models

Two heads covering φ12 to φ80 mm tube OD.

PT40

φ12 – 38 mm · ½″ – 1½″

Standard heat exchanger tube range. 3 kg · 0°/7° dual-angle slide base · elastic-collet clamping in <30 s. Materials: carbon, 304/316L/904L, duplex 2205, titanium, Alloy 600/690. Power source: FXT20 (220 V single-phase).

PT80

φ38 – 80 mm · 1½″ – 3⅛″

Larger tube-to-tubesheet joints on shell-and-tube condensers and process heat exchangers. Higher current range for thicker tube walls and larger OD. Power source: FXT40 Pro (380 V three-phase). Special configurations on request.

Power sources

PT40 → FXT20 (220 V, 4.5 kVA, 5–200 A) · PT80 → FXT40 Pro (380 V, 21.5 kVA, 5–400 A)

PT40 shares the FXT20 digital pulse power source with the C-series closed-chamber heads — a heat exchanger shop running PT40 tube-to-tubesheet work can switch to C-series WFI sanitary tube work with the same power source. PT80 uses the FXT40 Pro due to the higher current required for the larger OD range. Both heads share the same per-quadrant parameter architecture and auto-indexing operator workflow.

03 / Engineering specifications

Spec sheet for procurement.

Welding process

GTAW (TIG) — DC and Pulse modes; autogenous or with filler wire (confirmed by WPS)

PT40 tube OD range

φ12 – 38 mm (½″ – 1½″)

PT80 tube OD range

φ38 – 80 mm (1½″ – 3⅛″) — special configurations on request

Wall thickness

2 mm typical; programmable to 3.5 mm; confirmed by customer WPS and tube projection

PT40 power source

FXT20 — 220 V ±10% single-phase, 4.5 kVA, 5–200 A DC, IP21

PT80 power source

FXT40 Pro — 380 V ±10% three-phase, 21.5 kVA, 5–400 A DC, IP21

Quadrant control

4-quadrant independent programmable parameters per rotation — peak current, base current, pulse frequency, travel speed

AVC arc tracking

Arc voltage control across each rotation for consistent standoff despite tube projection variation

Head clamping

Elastic-collet clamping, <30 s setup per tube position

Slide base angles

0° and 7° dual-angle slide base (PT40) — covers flush and protruding tube projection geometries

Auto-indexing

Motor-driven repositioning to next tube position — no operator re-clamping between adjacent welds

Data log

Per-joint indexed by tube row × column coordinate — program ID, operator ID, voltage, current, gas flow, pulse profile, timestamp

Stored programs

200 groups (PT40 / FXT20) · 50 groups (PT80 / FXT40 Pro) — indexed by material × OD × wall × quadrant

Joint types

Flush · protruding · seal weld · groove weld with filler wire — all confirmed by customer WPS/PQR

Materials

Carbon steel · stainless 304 / 316L / 904L · duplex 2205 / 2507 · cupronickel 90/10 · titanium · Alloy 600 / 690

Standards fit

ASME Section VIII · ASME Section IX · TEMA · AWS D18.1 · HEI (Heat Exchange Institute)

Certifications

CE · ISO 9001

Delivery

Confirmed by configuration, production schedule, and logistics

Warranty

12 months whole-machine; consumables excluded

04 / Industry use cases

Where PT40 / PT80 fits.

→ Shell-and-Tube Heat Exchangers

Production fabrication of TEMA / ASME Sec VIII bundles.

Shell-and-tube heat exchanger fabrication involves hundreds to thousands of tube-to-tubesheet joints that must pass hydrostatic test and radiographic acceptance before the bundle ships. Manual GTAW on these joints produces variable arc length (driven by tube projection tolerance) and inconsistent heat input (driven by operator position and fatigue) that result in rejected joints, rework, and schedule delays.

The PT40 on FXT20 digital pulse power addresses both: the fixed spindle geometry eliminates arc-length variance from tube projection variation, and the per-quadrant parameter control compensates for the tubesheet’s asymmetric thermal sink. For fabricators with typical 16–38 mm OD tube in 316L, duplex 2205, or titanium, the PT40 produces repeatable joints with per-position data records that satisfy ASME Sec VIII and TEMA documentation requirements without manual parameter recording.

Compatible: 316L, 304L, duplex 2205/2507, cupronickel 90/10, titanium. OD range: PT40 φ12–38 mm; PT80 φ38–80 mm. Codes: ASME Section VIII, TEMA, ASME Section IX, HEI.

→ Power Boilers and Economizers

Boiler tube-to-tubesheet seal welds under ASME Section I.

Power boiler economizers, superheaters, reheaters, and air preheaters use thousands of tube-to-tubesheet joints on SA-178, SA-192, and SA-213 carbon and alloy steel tubes at operating pressures of 10–25 MPa. ASME Section I tube-to-tubesheet joint qualification requires 100% hydrostatic test and, for certain services, volumetric NDE. The PT-series auto-indexing and per-joint record capability is particularly valuable in high-tube-count boiler assemblies where tracking individual joint acceptance status through the hydrostatic and NDE cycle is the primary documentation burden.

Compatible: Carbon steel (SA-178, SA-192), alloy steel (SA-213 T11/T22/P91), 304/316L stainless. Codes: ASME Section I, ASME Section IX, NBIC.

→ Condensers and Refrigeration Chillers

Cupronickel and titanium condenser tube bundles.

Marine and industrial condensers frequently use CuNi 90/10 or titanium tubing for seawater or aggressive process fluid duty. Cupronickel tube-to-tubesheet welding requires careful heat input management — CuNi’s high thermal conductivity demands higher current than stainless, while susceptibility to hot cracking at elevated temperatures limits peak current. The PT-series per-quadrant parameter library includes pre-validated entries for CuNi 90/10 indexed by OD × wall, providing the starting-point parameters that reduce process development time before PQR qualification. Titanium condenser tubes for high-purity applications benefit from the argon-protected arc and precision parameter control for consistent penetration on thin tube walls.

Compatible: CuNi 90/10, titanium Grade 2, stainless 316L. Codes: ASME Section VIII, HEI, TEMA.

→ Nuclear Steam Generators

ASME Section III tube-to-tubesheet welds on Alloy 600/690 and 316L.

Nuclear steam generator tube-to-tubesheet joints on Alloy 600 or Alloy 690 nickel-base tubes require per-joint parameter records that satisfy ASME Section III N-Stamp quality programs and 10 CFR 50 Appendix B traceability. The PT40 on FXT20’s per-joint data log — indexed by (row, column) coordinate with voltage, current, pulse profile, operator ID, and timestamp — is structured for the documentation density that nuclear quality programs expect, without creating a separate manual record for each of the several thousand joints in a steam generator bundle.

Compatible: Alloy 600 / 690, 316L stainless, carbon steel. Codes: ASME Section III, ASME Section IX, 10 CFR 50 Appendix B, NQA-1.

05 / Procurement questions

What buyers ask before the PO.

What is the difference between PT40 and PT80?

Tube OD range and power source. PT40 covers φ12–38 mm (½″–1½″) tube OD on the FXT20 power source (220 V single-phase, 5–200 A). PT80 covers φ38–80 mm (1½″–3⅛″) tube OD on the FXT40 Pro (380 V three-phase, 5–400 A) — required for the higher current demand on larger-diameter joints. Both share the same per-quadrant programmable parameter architecture and auto-indexing. A fabrication shop with both small-bore and large-bore bundles typically orders both heads with their respective power sources.

Why does PT40 use the same power source as the C-series closed-chamber heads?

Both PT40 and C-series operate in the same current range (5–200 A) and input power class (220 V single-phase 4.5 kVA). The FXT20 digital pulse power source was designed to cover both tube-to-tube closed-chamber welds (C-series) and tube-to-tubesheet welds (PT40) from a single compact unit. A fabrication shop building pharmaceutical heat exchangers that also does WFI sanitary piping runs the PT40 on the same FXT20 it uses for C-series tube work — one power source, two head families.

Why does tube-to-tubesheet welding need per-quadrant parameter control?

The thermal mass around each tube-to-tubesheet joint is asymmetric. In a triangular-pitch tubesheet, the quadrant facing the bulk tubesheet metal has a large heat sink that pulls temperature away from the weld; the quadrant facing the nearest adjacent tube hole (typically 5–10 mm away) has very little metal to absorb heat. A single set of parameters for the full 360° rotation either burns through the low-mass quadrant or fails to penetrate the high-mass quadrant. The PT-series programs peak current, base current, pulse frequency, and travel speed independently per quadrant — each quadrant gets the parameters its local thermal condition requires.

What tube projection geometry is supported — flush or protruding?

Both. The PT40 head has a 0°/7° dual-angle slide base. A 0° slide angle is used for flush or near-flush tube projection (tube end approximately level with the tubesheet face). A 7° slide angle accommodates protruding tube projection (tube extends beyond the tubesheet face). The customer WPS/PQR specifies the tube projection and joint geometry; we configure the head angle to match. For filler-wire groove configurations, contact our engineering team for WPS development support.

Can PT40 weld Alloy 600 / Alloy 690 nuclear steam generator tubes?

Yes. Alloy 600 (Inconel 600) and Alloy 690 (Inconel 690) are in the PT-series material library. Nuclear steam generator applications require ASME Section III quality programs and per-joint data records — both are supported: the FXT20’s per-joint data log indexed by (row, column) coordinate produces the audit trail. For N-Stamp quality programs, our process team supports WPS/PQR development on request.

How does the per-joint data log support ASME Section VIII and NDE traceability?

PT-series data logs index each weld by tube-row coordinate (row R, column C) with program ID, operator ID, voltage, current, gas flow, pulse profile, and timestamp. When an ASME Sec VIII auditor asks for the record on joint (Row 12, Column 8), the answer is a database lookup, not a paper search. After NDE (RT, PT, or UT as specified by the code case), joints that failed initial NDE can be traced back to their logged weld parameters to distinguish a process deviation from a material or fit-up issue — critical for informed accept/reject decisions on the rest of the bundle.

What’s the head change-out time between bundles with different tube ODs?

The PT40 elastic-collet adapts within the φ12–38 mm range — for most bundle-to-bundle changeovers within that range, only the collet insert and program number change, not the head itself. For a changeover from the PT40 range (φ12–38 mm) to the PT80 range (φ38–80 mm), a head swap is required along with a power source change from FXT20 to FXT40 Pro if both are not on the same production floor. Contact our applications team for the changeover procedure specific to your tube matrix.

→ Related

Other systems in the FYID-Feiyide range.

管对管板轨道焊机 · φ12–80 mm

PT40 / PT80管对管板轨道焊机。

专为管对管板密封焊设计的TIG轨道焊头。PT40覆盖FXT20电源上的φ12–38 mm管道；PT80覆盖FXT40 Pro上的φ38–80 mm。分象限参数控制、管位间自动换位和单焊口数据记录，适用于热交换器、锅炉和冷凝器制造。

选择型号

PT40 φ12–38 mm · FXT20

PT80 φ38–80 mm · FXT40 Pro

申请报价查看完整规格

应用场景 · 管壳式热交换器 · 动力锅炉 · 冷凝器 · 核蒸汽发生器
交货期 依据配置、生产计划和物流确认
认证 · CE · ISO 9001
质保 · 整机12个月

01 / 产品介绍

专为管壳式热交换器中重复次数最多的焊缝而设计的轨道TIG焊头。

FYID-Feiyide PT40和PT80是专用轨道GTAW（TIG）管对管板焊头，用于管端与管壳式热交换器、动力锅炉、冷凝器或核蒸汽发生器管板面接触位置的周向角焊缝和坡口焊缝。这种接头——通常称为"管对管板密封焊"——在每个管束中重复出现数百到数千次。其一致性决定了水压试验结果、无损检测通过率和项目进度。

PT系列焊头夹紧于管板上，并驱动TIG电弧绕管道圆周旋转。与改装的通用轨道焊头不同，PT设计无论管板上各管道伸出量如何变化，均能保持电弧与接头面的受控间距——这是手工管对管板焊接中弧长不一致最常见的单一原因。

分象限参数控制直接解决热不对称性问题：PT系列对每次旋转的四个象限分别独立编程峰值电流、基值电流、脉冲频率和行走速度。在标准三角节距管板中，靠近管板体金属侧的象限需要更高电流才能达到与距最近管孔仅5 mm处象限相同的熔透量。单一参数程序无法同时满足两侧要求；PT系列可以。

自动换位电机在每道焊缝完成后自动将焊头移至下一管位，无需操作者重新夹紧。在一个500根管束、每道接头焊接时间3分钟的工况下，自动换位每班可节省20–30分钟的换位时间。结合按管排和管列编号的单焊口数据记录，PT系列将劳动密集型手工操作转化为可重复、完全可审计的流程。

02 / PT40和PT80焊头型号

两款焊头覆盖φ12至φ80 mm管道外径。

PT40

φ12 – 38 mm · 1/2" – 1-1/2"

标准热交换器管道范围。重量3 kg · 0°/7°双角度滑座 · 弹性夹头夹紧时间<30秒。材质：碳钢、304/316L/904L、双相钢2205、钛合金、Alloy 600/690。电源：FXT20（220 V单相）。

PT80

φ38 – 80 mm · 1-1/2" – 3-1/8"

管壳式冷凝器和工艺热交换器上更大的管对管板接头。更高电流范围适应更厚管壁和更大外径。电源：FXT40 Pro（380 V三相）。特殊配置可定制。

电源

PT40 → FXT20（220 V，4.5 kVA，5–200 A）· PT80 → FXT40 Pro（380 V，21.5 kVA，5–400 A）

PT40与C系列密封腔焊头共用FXT20数字脉冲电源——同时开展PT40管对管板焊接和C系列WFI卫生级管道焊接的热交换器车间可使用同一台电源切换作业。PT80由于更大外径范围需要更高电流，使用FXT40 Pro电源。两款焊头共享相同的分象限参数架构和自动换位操作工作流程。

03 / 工程规格

采购规格表。

焊接工艺

GTAW（TIG）——DC和脉冲模式；自熔或填充焊丝（由WPS确认）

PT40管道外径范围

φ12 – 38 mm（1/2" – 1-1/2"）

PT80管道外径范围

φ38 – 80 mm（1-1/2" – 3-1/8"）——特殊配置可定制

壁厚

典型2 mm；可编程至3.5 mm；由客户WPS和管道伸出量确认

PT40电源

FXT20——220 V ±10%单相，4.5 kVA，5–200 A DC，IP21

PT80电源

FXT40 Pro——380 V ±10%三相，21.5 kVA，5–400 A DC，IP21

象限控制

每次旋转4象限独立可编程参数——峰值电流、基值电流、脉冲频率、行走速度

AVC弧长跟踪

每次旋转中弧压控制，保持一致弧长间距，补偿管道伸出量变化

焊头夹紧

弹性夹头夹紧，每管位安装时间<30秒

滑座角度

0°和7°双角度滑座（PT40）——覆盖齐平和凸出管道伸出几何形式

自动换位

电机驱动换位至下一管位——相邻焊缝间无需操作者重新夹紧

数据记录

单焊口按管排×管列坐标编号——程序ID、操作者ID、电压、电流、气体流量、脉冲曲线、时间戳

存储程序

200组（PT40/FXT20）· 50组（PT80/FXT40 Pro）——按材质×外径×壁厚×象限编号

接头类型

齐平·凸出·密封焊·带填充焊丝坡口焊——均由客户WPS/PQR确认

材质

碳钢 · 不锈钢304/316L/904L · 双相钢2205/2507 · 铜镍90/10 · 钛合金 · Alloy 600/690

标准符合性

ASME Section VIII · ASME Section IX · TEMA · AWS D18.1 · HEI（热交换器学会）

认证

CE · ISO 9001

交货期

依据配置、生产计划和物流确认

质保

整机12个月；耗材除外

04 / 行业应用场景

PT40/PT80的适用领域。

→ 管壳式热交换器

TEMA/ASME Sec VIII管束的生产制造。

管壳式热交换器制造涉及数百到数千道管对管板接头，这些接头必须在管束出厂前通过水压试验和射线检测验收。手工GTAW焊接这些接头时，由于管道伸出量公差导致弧长变化，以及操作者位置变化和疲劳导致热输入不一致，造成接头报废、返工和工期延误。

FXT20数字脉冲电源上的PT40同时解决了这两个问题：固定主轴几何形式消除了管道伸出量变化引起的弧长差异，而分象限参数控制补偿了管板不对称导热的影响。对于使用316L、双相钢2205或钛合金典型16–38 mm外径管道的制造商，PT40产生可重复的接头，并提供每管位数据记录，满足ASME Sec VIII和TEMA文件要求，无需手工记录参数。

兼容材质：316L、304L、双相钢2205/2507、铜镍90/10、钛合金。外径范围：PT40 φ12–38 mm；PT80 φ38–80 mm。标准：ASME Section VIII、TEMA、ASME Section IX、HEI。

→ 动力锅炉和节能器

ASME Section I要求下的锅炉管对管板密封焊。

动力锅炉节能器、过热器、再热器和空气预热器在SA-178、SA-192和SA-213碳钢及合金钢管上使用数千道管对管板接头，运行压力10–25 MPa。ASME Section I管对管板接头评定要求100%水压试验，某些服务还需体积检测。PT系列自动换位和单焊口记录能力在高管数锅炉组件中尤为有价值——在水压试验和无损检测周期中追踪各接头验收状态是主要文件管理负担。

兼容材质：碳钢（SA-178、SA-192）、合金钢（SA-213 T11/T22/P91）、304/316L不锈钢。标准：ASME Section I、ASME Section IX、NBIC。

→ 冷凝器和制冷机组

铜镍合金和钛合金冷凝器管束。

船用和工业冷凝器经常使用铜镍90/10或钛合金管道用于海水或腐蚀性工艺流体环境。铜镍合金管对管板焊接需要仔细控制热输入——铜镍的高导热性需要比不锈钢更高的电流，而对高温热裂纹的敏感性又限制了峰值电流。PT系列分象限参数库包含按外径×壁厚编号的铜镍90/10预验证参数，提供可减少PQR评定前工艺开发时间的起点参数。用于高纯度应用的钛合金冷凝器管道受益于氩气保护弧和精确参数控制，在薄管壁上实现一致熔透。

兼容材质：铜镍90/10、钛合金2级、316L不锈钢。标准：ASME Section VIII、HEI、TEMA。

→ 核蒸汽发生器

Alloy 600/690和316L上的ASME Section III管对管板焊缝。

镍基Alloy 600或Alloy 690管的核蒸汽发生器管对管板接头需要满足ASME Section III N级质量计划和10 CFR 50附录B溯源要求的单焊口参数记录。FXT20上PT40的单焊口数据记录——按（排、列）坐标编号，包含电压、电流、脉冲曲线、操作者ID和时间戳——其文件密度结构符合核质量计划要求，无需为蒸汽发生器管束数千道接头中的每一道单独手工记录。

兼容材质：Alloy 600/690、316L不锈钢、碳钢。标准：ASME Section III、ASME Section IX、10 CFR 50附录B、NQA-1。

05 / 采购常见问题

采购商下单前的常见问题。

PT40和PT80有什么区别？

管道外径范围和电源。PT40覆盖FXT20电源（220 V单相，5–200 A）上的φ12–38 mm（1/2"–1-1/2"）管道外径。PT80覆盖FXT40 Pro（380 V三相，5–400 A）上的φ38–80 mm（1-1/2"–3-1/8"）管道外径——大径接头更高电流需求所必需。两款焊头共享相同的分象限可编程参数架构和自动换位功能。同时拥有小径和大径管束的制造车间通常各配备一套焊头及其对应电源。

PT40为什么与C系列密封腔焊头使用同一台电源？

PT40和C系列均在相同电流范围（5–200 A）和输入功率级别（220 V单相4.5 kVA）下工作。FXT20数字脉冲电源专为从单台紧凑型设备覆盖管对管密封腔焊接（C系列）和管对管板焊接（PT40）而设计。同时从事制药热交换器制造和WFI卫生级管道工程的制造车间，可在PT40和C系列管道作业之间使用同一台FXT20切换——一台电源，两个焊头系列。

管对管板焊接为什么需要分象限参数控制？

每个管对管板接头周围的热质量是不对称的。在三角节距管板中，面向管板体金属的象限有大的导热体将热量从焊缝引走；面向最近相邻管孔（通常5–10 mm远）的象限几乎没有金属吸热。针对360°旋转的单一参数组要么烧穿低质量象限，要么无法熔透高质量象限。PT系列对每个象限分别独立编程峰值电流、基值电流、脉冲频率和行走速度——每个象限获得其局部热工况所需的参数。

支持哪些管道伸出几何形式——齐平还是凸出？

两者均支持。PT40焊头配有0°/7°双角度滑座。0°滑座角度用于齐平或接近齐平的管道伸出（管端大致与管板面齐平）。7°滑座角度适用于凸出型管道伸出（管道伸出管板面）。客户WPS/PQR规定管道伸出量和接头几何形式；我们根据要求配置焊头角度。对于填充焊丝坡口焊配置，请联系我们的工程团队获取WPS开发支持。

PT40能焊接Alloy 600/Alloy 690核蒸汽发生器管道吗？

可以。Alloy 600（Inconel 600）和Alloy 690（Inconel 690）均在PT系列材质库中。核蒸汽发生器应用需要ASME Section III质量计划和单焊口数据记录——两者均受支持：FXT20按（排、列）坐标编号的单焊口数据记录提供审计追踪。对于N级质量计划，我们的工艺团队可按需支持WPS/PQR开发。

单焊口数据记录如何支持ASME Section VIII和无损检测溯源？

PT系列数据记录按管排坐标（R排C列）编号每道焊缝，包含程序ID、操作者ID、电压、电流、气体流量、脉冲曲线和时间戳。当ASME Sec VIII审核员要求查阅（第12排第8列）接头记录时，答案是数据库查询，而非纸质档案搜索。经无损检测（RT、PT或UT，按规范要求）后，初次未通过的接头可追溯回其记录的焊接参数，以区分工艺偏差与材质或装配问题——这对于管束其余接头的合理接受/拒绝决策至关重要。

不同管道外径管束间的焊头更换时间是多少？

PT40弹性夹头在φ12–38 mm范围内自适应——对于该范围内的大多数管束间换型，只需更换夹套插件和程序编号，焊头本身无需更换。从PT40范围（φ12–38 mm）换型到PT80范围（φ38–80 mm）时，需要更换焊头，如果两款电源不在同一生产现场，还需从FXT20更换为FXT40 Pro电源。请联系我们的应用工程团队获取针对您管板矩阵的具体换型程序。

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FAQ

What is the PT40 tube-to-tubesheet orbital welding machine used for?

The PT40 is a "scalpel-grade" automated precision welding terminal designed for tube-to-tubesheet connection welding. Paired with the FXT20 programmable power source, it achieves all-position automatic TIG welding for tube diameters from φ12mm to φ38mm. It is specifically engineered to replace manual welding in boilers and heat exchangers, ensuring 100% consistency and eliminating quality fluctuations.
Why choose an automated tubesheet welder over manual welding?

Automated systems like the PT40 solve three major pain points: difficult welder recruitment, quality inconsistency, and low efficiency. It transforms master-level craftsmanship into digital parameters, allowing ordinary operators to produce high-precision, leak-free welds that meet nuclear-grade safety standards.
What pipe diameters and materials can the PT40 tubesheet welder handle?

The PT40 supports an outer diameter range of φ12mm to φ38mm. It is compatible with a variety of critical materials including carbon steel, stainless steel, and titanium alloy. For mainstream tube diameters, it uses a standard 0°/7° dual-angle slide base to ensure perfect electrode positioning for different joint types.
Is the PT40 suitable for welding in narrow or restricted spaces?

Yes. The PT40 features an extreme lightweight design, weighing only 3kg with dimensions of 300×150×143mm. This allows it to easily extend into narrow tube boxes and compact heat exchanger shells where traditional large automatic welding machines or manual torches cannot operate effectively.
How fast is the clamping process for the PT40 welding head?

The PT40 utilizes an innovative 180° handle-triggered elastic collet mechanism. This radial and axial dual positioning system allows a single operator to complete the entire clamping process in just 30 seconds, compared to the typical 5 minutes required by traditional methods, significantly boosting productivity.
Can the PT40 tubesheet welder support 24-hour continuous operation?

Yes. The PT40 features a full water-cooling design that protects the gear shaft, turntable, and tungsten electrode holder. With a cooling water flow of ≥600ml/min and a 100A duty cycle of 70%, it can handle long-duration, high-intensity welding tasks without performance degradation or torch burn-out.
In which industries is the PT40 orbital tubesheet welder typically applied?

The PT40 is widely used in boiler manufacturing (economizers, superheaters), heat exchanger production, nuclear power equipment (steam generators), and the chemical industry (reactors and condensers). It is the ideal solution for high-pressure and corrosion-resistant environments where leak-free seal welding is mandatory.
What safety protections are included with the PT40 welding system?

Safety is paramount. The PT40 includes leakage protection, a silver-plated conductive ring for reliable grounding, and an emergency stop function. It also features a water-cooling flow monitor that alarms if the flow drops below 450ml/min, preventing equipment damage and ensuring operator safety in industrial environments.

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FYID Автоматизированная система сварки трубных решёток | Головки PT40/PT80 с FXT20