Robot Return to China for Repair: Customs, Cost, Downtime

Short answer: Sending a robot from the US or Canada back to the factory in China for repair is the slowest and usually the most expensive way to fix it. You pay for crating, two international shipments, export and import paperwork on both sides, two local visits to de-install and re-deploy it, and weeks of downtime. Duty is usually not zero either. In the US, a robot repaired in China comes back dutiable on the value of the repair (HTSUS 9802.00.40/.50). China is not one of the trade partners that get this duty-free, and Section 301 duty also applies to the repair value if the robot's tariff number is on a 301 list. In Canada, the starting point is duty on the value of the whole good, unless a relief applies (CBSA Memorandum D8-2-10). Return-to-factory makes sense for a short list of faults: sealed joint or gearbox modules, assemblies that need factory fixtures to calibrate, a bent main frame, and batch failures that need root-cause analysis. Even then it is often the failed module that needs to go back, not the robot. Everything else (sensors, boards, wheel and drive modules, battery packs, covers, harnesses, cleaning modules, software) can usually be fixed in North America, if parts, written repair authority and documentation are already there.

This page is for robot makers from China selling into North America, and for the North American operators who own their robots. KeepRobots is a robot field service company in Vancouver. Rules below are summarised from official sources, checked 2026-10-30 and listed at the end. Lists of faults and hours in the examples are our planning assumptions, not statistics. This is not customs, export-control or tax advice: have a licensed customs broker and your forwarder confirm each shipment. The Chinese version (with a full cost estimate per robot type) is linked at the end.

When return-to-factory makes sense, and when it doesn't

Most "send it back" decisions are made because nobody in North America has the part, the permission or the document to do the repair. Fix that, and the list of faults that truly need the factory gets short:

Fault type	Remote (factory team)	Local repair in North America	Usually back to the factory
Software, firmware, maps	Most cases: parameters, map rebuilds, firmware rollback, certificates and network settings	On-site re-mapping, re-teaching points, elevator and door integration	Rarely: a bricked bootloader that needs a factory flashing fixture
Sensors, lidar, cameras	Tell dirt, blockage and parameter drift apart from point clouds and images	Swap the unit and calibrate extrinsics to your procedure (needs targets and tools)	Internal sensor repair goes to the sensor maker, not with the whole robot
Main, drive and power boards	Read codes and logs to find which board	Swap the board (pre-flashed or flashable on site)	Board-level repair and failure analysis: ship the failed board only
Motors, wheels, drive units	Current, temperature and encoder data	Swap wheel or drive modules on AMRs and cleaning robots	Rewinding, bearing replacement and test-stand runs
Joint modules, gearboxes (arms, humanoids, quadrupeds)	Joint current, temperature and zero position	Swap a whole module if it is designed for it and can be zeroed in software	Sealed modules, gearbox replacement, zero and stiffness calibration on factory fixtures
Battery, BMS	BMS data: cell wear, balancing or communication	Swap the whole pack (if spare packs are stored locally)	Pack teardown is rarely done; damaged batteries are the hardest thing to ship (see below)
Frame, covers, harnesses	Photos to judge the damage	Covers, bumpers, harnesses, fasteners; checks after a collision	A bent main frame or cracked weld that needs a factory jig
Batch faults with no known cause	Logs and data from several robots	Photos, samples and evidence to your checklist	Root-cause analysis: send the failed parts and data, not necessarily the robot

The pattern: what really has to go back is usually an assembly or a failed part. Swapping it locally and shipping the failed part afterwards removes the freight, most of the paperwork and nearly all of the downtime. How to plan warranty, RMA and who pays for what is in robot warranty and RMA in North America; which parts to keep where, in robot spare parts consignment in Canada.

What a round trip to the factory costs

Cost line	What drives it
Crating	Wood crate with shock and moisture protection. Solid wood must meet ISPM 15 (see below). Humanoids need a standing crate with a frame.
International freight × 2	Air freight is billed on the greater of actual and volumetric weight (commonly L × W × H in cm ÷ 6,000; ask your forwarder). A crated robot often bills well above its scale weight. Rates move weekly: get a door-to-door quote.
Pickup, delivery and terminal handling at both ends	Forwarder quote
Customs entries × 4	Export from North America, import into China, export from China, import back into North America; broker fees each time
Dangerous goods handling	If the battery travels with the robot or separately as dangerous goods
Duty on return	US: duty on the repair value, plus Section 301 on that value if listed. Canada: depends on classification and relief (below)
Two local visits	De-install, back up data and pack; then re-deploy, re-map and test. Example at KeepRobots rates in the Greater Vancouver core zone, 2 h + 4 h: 2 × C$100 + 6 × C$150 = C$1,100 before tax
Downtime	Door to door each way plus the factory queue, typically counted in weeks. Nobody invoices it, but the customer remembers it

A simple downtime check, with assumed numbers: a cleaning robot that replaces 4 hours of night cleaning at C$30/hour saves C$120 a night. Five weeks away is about C$4,200 of labour the customer pays for in the meantime. Compare that with a loaner unit: one swap visit in the core zone at 4 hours is C$100 + 4 × C$150 = C$700 before tax, and the failed robot can then travel by sea and wait its turn. For a line-by-line comparison of on-site repair, return-to-factory and your own engineer, see how much robot repair costs in North America.

Customs, step by step: leaving North America

From the US

Export filing (EEI in AES). Under 15 CFR 30.37(a), filing is not required when the value per Schedule B number is US$2,500 or less, and 30.37(q) exempts temporary exports returned within 12 months, except those that require licensing. But for China there is an override: 15 CFR 758.1(b)(10) requires EEI for all exports of items on the Commerce Control List to China (including Hong Kong), regardless of value. A robot in the EAR sense (a programmable manipulation mechanism) that uses real-time sensor feedback can fall under ECCN 2B997, which is on the CCL. So classify the robot before you assume an exemption.
Classification and end use. The exporter is responsible for the export classification. Some items on Supplement 2 to Part 744 need a licence for China if there is "knowledge" of a military end use or end user (15 CFR 744.21). For a commercial robot going back to its own maker for repair this is usually a paperwork check, not a blocker, but it must be done.
Prove what left. On the way back, CBP can ask for proof of export (19 CFR 10.8(b)). Register the robot with serial numbers before it leaves; CBP Form 4455 (Certificate of Registration) lists "articles exported for repair" and is commonly used for this. 19 CFR 10.8 itself doesn't make the form mandatory, but without solid proof of export you risk paying duty on the full value.

From Canada

No export declaration for a repair round trip. CBSA Memorandum D20-1-1 exempts non-restricted goods exported for repair or warranty repair that will return to Canada, regardless of value (code NDR10). CBSA suggests form BSF407 (Identification of Articles for Temporary Exportation) or an ATA Carnet to identify them. Goods on the Export Control List still need a declaration and permit.
Keep proof of export and serial numbers. On return, CBSA asks for proof of export and a repair invoice; without them, duty and tax can be charged on the full value.

In China: import for repair, or return of an export

Ask your factory's customs team which route applies before the robot ships. Under the General Administration of Customs Order No. 272 (in force 2024-12-01):

Inbound repair (进境修理, Articles 39–41, 48). The importer presents the repair contract, or the original export contract with its warranty clause, and either provides a guarantee or has the goods managed as bonded goods. The robot must be re-exported within the period customs sets based on the contract and circumstances; an extension can be requested before the deadline. If it isn't re-exported in time, the guarantee is converted into duty and tax.
Return of an export for quality reasons (退运, Customs Tariff Law Article 39; Order 272 Articles 49–50). Exported goods returned in their original condition within one year of export because of quality or specification problems are exempt from import duty (and import-stage taxes, once customs confirms), with extensions possible up to three years. This fits a robot that is coming back for good, not one that will be shipped out again.

Customs, step by step: coming back

Into the US

HTSUS 9802.00.40 (repairs under warranty) and 9802.00.50 (other repairs): duty is charged on the value of the repair, including all parts used (19 CFR 10.8(d)). The duty-free version applies only to listed trade partners (for USMCA, repairs done in Canada or Mexico). China is not on the list, so a warranty repair done for free still has a value to declare.
Declarations: 19 CFR 10.8(a) requires a declaration by the foreign repairer that these are the same articles, received for repair only, with no substitution, and a declaration by the importer. CBP can waive them, but plan to have them. A different robot sent back "because it was easier" is a new import, not a repair.
Section 301: USTR's 2018 List 2 notice (83 FR 40823) applies the additional 25% duty to goods entered under 9802.00.40, .50 and .60, on the value of the repairs, if the robot's own tariff number is on a Section 301 list. It is still in effect. Since 2026-07-24, the separate Section 301 forced-labor duty (12.5% on products of China, on top of the other 301 duties) also applies to the value of repairs for 9802 entries. Tariffs changed several times in 2026: ask your broker which ones apply on the day of entry.

Into Canada

The default is duty on the value of the good, not the repair (CBSA Memorandum D8-2-10), unless relief applies. Tariff item 9992.00.00 makes repairs in free-trade partner countries such as the US and Mexico duty-free; China is not on that list.
Relief still exists: if the robot is duty-free by its normal classification anyway (many industrial robot and robot-part tariff items are Free under MFN), there is no duty to pay. For goods that qualify under CBSA's program for Canadian goods repaired abroad, duty is paid on the repair value only. Which case applies depends on the robot and the paperwork.
GST/HST: goods returned after warranty repair are non-taxable; for qualifying non-warranty repairs, GST/HST is payable on the value of the work done abroad, including added parts, plus any duty. Otherwise GST/HST is charged on the value for duty.

Batteries: the part that blocks the shipment

Damaged or defective batteries don't fly. 49 CFR 173.185(f) allows lithium batteries that are damaged or defective for safety reasons (for example, returned to the maker for safety reasons) to travel by highway, rail or vessel only, in specific packaging marked "Damaged/defective lithium ion battery". IATA's 2026 guidance says the same for air: forbidden, including batteries installed in equipment. Equipment returned for a fault that has nothing to do with the battery is not prohibited by air on that ground.
State of charge. From 1 January 2026, IATA requires a state of charge of no more than 30% for batteries packed with equipment (PI 966); for batteries installed in equipment (PI 967) it is recommended, not mandatory. Separate battery shipments (UN3480) were already at 30%.
Canada: the TDG Regulations (special provision 137) require damaged or defective batteries to be marked "Damaged/Defective" (in English and French) and forbid transport of batteries likely to react dangerously.
Best option: if the fault is the battery, swap the pack locally and handle the failed one under local rules instead of shipping the robot with it.

Wood crates: ISPM 15

Solid wood packaging between China and Canada must meet ISPM 15 (CFIA directive D-98-08): debarked, treated (heat treatment, core 56 °C for 30 minutes, or another approved treatment) and marked with the IPPC stamp. Wood packaging leaving Canada must be treated and stamped at a CFIA-registered facility. If you reuse the factory crate for the trip back, check that the mark is still legible. Manufactured wood such as plywood is generally exempt; confirm with your forwarder.

Before you ship a robot back: a checklist

Remote triage done, with fault codes, logs, photos and video attached. Confirm it is not a parameter or map problem.
Decide what goes: the whole robot, an assembly, or only the failed part.
Offer the customer a loaner unit or a written timeline.
Back up maps, points, customer settings and logs before de-installing.
Export: classification checked (ECCN or EAR99), EEI decision recorded (US), BSF407 or proof of export (Canada), serial numbers listed, CBP Form 4455 if from the US.
Repair contract or warranty clause ready for import into China; the factory's customs team chooses inbound repair or return of export.
Battery decision: ship installed, packed separately, or swapped locally. Damaged batteries do not fly.
ISPM 15 crate, insurance, door-to-door quote from one forwarder for the whole round trip.
Return paperwork prepared in advance: repairer's and importer's declarations (US 19 CFR 10.8), repair invoice stating the value even if free, proof of export (Canada).
Re-deployment visit booked for the week the robot lands.

How to send fewer robots back

Design for field replacement: wheels, sensors, boards, battery packs and joint modules that a trained technician can swap in 1–2 hours.
Swap first, repair later: restore the customer the same day and deal with the failed part afterwards.
Batch failed parts: hold them in North America and ship monthly or quarterly with failure records, instead of one international shipment per part.
Record every return: design issue, missing spare, or no local authority? After three months you will know where to spend.

Parts, written repair authority, tools and documentation are what make local repair possible; what to hand over to a local partner is in training a third-party robot field technician.

What KeepRobots can do

KeepRobots is a robot field service company based in Vancouver, serving Greater Vancouver first, with on-site visits across Canada and the US. We only do service; we don't make or sell robots and aren't any brand's exclusive agent. To keep robots out of crates, we can: diagnose and swap modules on site to your fault trees and repair authority, with photos, logs and reports sent back; keep your spare parts, loaner units and failed parts waiting to be returned in Vancouver; tag and log failed parts and pack them for batch returns (your forwarder and customs broker handle the shipping and entries); and when a robot does have to go back, de-install, back up and pack it, then re-deploy and test it when it returns. Our engineers read Chinese technical documentation and can join calls in China time.

Current rates, before tax: diagnostic CAD 200 in Canada or USD 200 in the US, per robot, per visit (credited if the repair is approved); Greater Vancouver core-zone call-out CAD 100 per visit; on-site labour CAD 150/hour in Canada or USD 150/hour in the US; travel outside the core zone and US projects quoted per project. See robot repair and maintenance and North America field service for robot makers, or write to partners@keeprobots.com.

FAQ

Should I send a broken robot back to the manufacturer in China for repair?

Only for faults that need the factory: sealed joint or gearbox modules, assemblies calibrated on factory fixtures, a bent main frame, or batch failures that need root-cause analysis. Even then, ship the failed module if you can. Sensors, boards, wheel and drive modules, battery packs, covers and software can usually be fixed in North America if parts, repair authority and documentation are there.

Do I pay US duty when a robot repaired in China comes back?

Yes, usually on the value of the repair, including parts, under HTSUS 9802.00.40 (warranty) or 9802.00.50 (other repairs) and 19 CFR 10.8. The duty-free treatment applies only to listed trade partners, not China. If the robot's tariff number is on a 2018 Section 301 list, that 301 duty also applies to the repair value, and since 2026-07-24 so does the 12.5% Section 301 forced-labor duty on products of China. Ask your customs broker; this is not customs advice.

Do I pay Canadian duty and GST when a robot repaired in China comes back?

CBSA Memorandum D8-2-10 starts from duty on the value of the good, unless relief applies. Tariff item 9992.00.00 covers repairs in free-trade partner countries, not China. If the robot is duty-free by classification, there is no duty. Warranty repairs are non-taxable for GST/HST; qualifying non-warranty repairs pay GST/HST on the value of the work. Ask your broker.

Do I need an export filing to send a robot from the US to China for repair?

Check the classification first. EEI is not required at US$2,500 or less per Schedule B number, and temporary exports returned within 12 months are exempt unless they need a licence. But 15 CFR 758.1(b)(10) requires EEI for all Commerce Control List items going to China regardless of value, and robots with real-time sensor feedback can be ECCN 2B997.

Can a robot with a damaged battery be flown back to China?

No. Lithium batteries damaged or defective for safety reasons may travel only by highway, rail or vessel under 49 CFR 173.185(f), and IATA forbids them by air, including when installed in equipment. Swap the battery locally and ship the robot without it, or ship by sea with the required packaging and marking.

What does KeepRobots charge to fix a robot locally instead?

Current rates before tax: diagnostic CAD 200 / USD 200 per robot, per visit (credited if the repair is approved), Greater Vancouver core-zone call-out CAD 100, labour CAD 150/hour in Canada or USD 150/hour in the US; travel outside the core zone and US projects quoted per project. Example: a two-hour module swap in the core zone is C$100 + 2 × C$150 = C$400, parts extra.

Sources (checked 2026-10-30)

15 CFR 30.37, EEI exemptions: ecfr.gov
15 CFR 758.1(b)(10), EEI for CCL items to China regardless of value: ecfr.gov
15 CFR Part 774 Supplement 1, ECCN 2B997 robots: ecfr.gov
15 CFR 744.21, military end use and end user (China): ecfr.gov
19 CFR 10.8, articles exported for repairs or alterations: ecfr.gov
USITC, Harmonized Tariff Schedule (Chapter 98, 9802.00.40 / 9802.00.50): hts.usitc.gov
CBP Form 4455, Certificate of Registration: cbp.gov
USTR Section 301 List 2 notice, 83 FR 40823 (2018-08-16): federalregister.gov
USTR Section 301 forced-labor action, FR 2026-15181 (2026-07-28): govinfo.gov
CBSA Memorandum D8-2-10, goods returning to Canada after repair outside Canada: cbsa-asfc.gc.ca
CBSA Memorandum D8-2-26, tariff item 9992.00.00: cbsa-asfc.gc.ca
CBSA Memorandum D20-1-1, export reporting: cbsa-asfc.gc.ca
China, Measures for the Administration of Duty Collection on Imported and Exported Goods (GACC Order No. 272, Chinese): gov.cn
49 CFR 173.185, lithium cells and batteries: ecfr.gov
IATA, lithium batteries (2026 Lithium Battery Guidance Document): iata.org
Transportation of Dangerous Goods Regulations, Schedule 2 special provision 137: laws-lois.justice.gc.ca
CFIA, wood packaging questions and answers (D-98-08, ISPM 15): inspection.canada.ca
CFIA, wood packaging in outbound shipments from Canada: inspection.canada.ca

Chinese version: 机器人跨国返厂维修有多贵？什么情况下必须在北美本地修

This page summarises public sources for orientation only, as of 2026-10-30. It is not customs, export-control or tax advice. Fault lists, hours and downtime figures are KeepRobots' planning assumptions, not statistics. Rates are KeepRobots' current published rates, before tax, and may change.

Shipping a robot back to China for repair: customs, cost, downtime — and when to fix it locally