A used 40 m rotary drilling rig with 1.2 m bore capacity fits urban-foundation and bridge-pile work in Vietnam when its kelly bar, power-head torque and crowd system check out. Expect an indicative USD 90,000–160,000 FOB Shanghai; condition evidence — not the sticker — decides real value.

What Are the Core Specs and Where Does a 40m / 1.2m Rig Fit?

Field	Typical value on a 40m class rig
Max drilling depth	40 m
Max bore diameter	1.2 m
Kelly / extension bars	4 sections, 15 m each
Power-head torque	180 kN·m
Mast height	21 m
Main winch pull	200 kN
Auxiliary winch pull	80 kN
Mud pump	3PNL, 22 kW
Tooling included	Yes — auger + bucket
Metres drilled	~12,000 m (unit-dependent)

The 40 m depth class covers most bored-pile jobs under high-rises in Hanoi and Ho Chi Minh City. The 1.2 m diameter suits friction and end-bearing piles in soft clay and sandy fill. For basalt or 1.5 m+ piles, step up to a 50–60 m rig.

How to Inspect a Used Rotary Rig's Condition?

Kelly bar: check spline wear, straightness, and cracks at joint welds — a bent kelly costs more to fix than the discount.
Power head: confirm rated torque under load; listen for abnormal gear noise.
Crowd cylinder and mast: look for hydraulic leaks and weld repairs on the mast.
Winches: test main and auxiliary line pull; frayed ropes mean immediate replacement.
Undercarriage: verify track links, rollers, and swing-bearing play.
Electronics: read fault codes on the display; a clean panel hides nothing if codes are logged.

What Does a Used 40m Rotary Rig Cost, and What's the Export Process?

Indicative price ranges by condition:

Reconditioned, low hours: USD 140,000–160,000
Working, average wear: USD 110,000–135,000
Project-retired, needs work: USD 90,000–105,000
Export steps: inspection video → proforma invoice → disassemble mast and kelly for 40HQ → lashing and container booking → export declaration at Shanghai → Bill of Lading. We supply export documents; import clearance in Vietnam is the buyer's responsibility.

What Are the Common Pitfalls and Who Handles Customs?

Pitfall 1: "Full diameter" claimed but only a 1.0 m bucket present — verify tooling.
Pitfall 2: Hour meter rolled back; cross-check with maintenance logs and photos.
Pitfall 3: Hidden mast weld repair found only after arrival.
Responsibility: the seller provides export documents and honest condition reports; import duty, VAT and clearance at the destination port are the buyer's scope. We do not promise "包清关 / 包税".

How We Evaluated These Rigs

We shortlisted rigs by documented metres drilled, third-party inspection videos, and original spec plates. Each rig passed a load test on the power head and a pressure test on the hydraulic system before listing. Figures above are indicative and confirmed against the unit's actual inspection file.

Which Used Rotary Rigs We Recommend (3–5 Units)

We currently stock and can export the following 40 m-class rotary rigs. Every unit is inspected against the checklist above; prices are indicative EXW China and not a firm quote.

Model	Max depth / dia	Engine / torque	Year / hours	Indicative price (EXW)
XCMG XR280D	80 m / 2.5 m	270 kW / 280 kN·m	2019 / 3,600 h	US$ 118,000–145,000
XCMG XR360	100 m / 3.0 m	298 kW / 360 kN·m	2018 / 4,200 h	US$ 150,000–185,000
SANY SR285	80 m / 2.5 m	268kW / 285 kN·m	2020/ 3,100 h	US$ 120,000–150,000
Zoomlion ZR220A	70m / 2.0m	187 kW / 220 kN·m	2018 / 4,200 h	US$ 86,000–108,000
Sunward SWDM280	85 m / 2.5 m	268kW / 280 kN·m	2019 / 3,500 h	US$ 110,000–138,000

FAQ

Can a 40m rig drill 1.2m holes in basalt?

Only with the right tooling and reduced depth; basalt usually needs a larger rig or pre-breaking.

Is tooling included?

A standard set (auger + bucket) is included unless stated; casing is optional.

How long to ship to Vietnam?

About 10–15 days sea freight from Shanghai, plus clearance.

Do you provide a load-test video?

Yes — every listed rig ships with a test video and spec-plate photos.

Does the mast fit a 40HQ container?

Yes, mast and kelly disassemble for 40HQ; we send the lashing plan.

Sources

Vietnam Customs — import procedures and HS classification for construction machinery: https://www.customs.gov.vn/
XCMG global — rotary drilling rig technical specifications (depth, torque, kelly bar): https://www.xcmg.com/
Freight rate reference: Q3 2026 quotations, Shanghai to Haiphong, available on request.
Published: 2026-10-22 · Last reviewed: 2026-10-22 · Author: 【Pace 】Equipment Inspector, FairTradeMachinery