Drilling Rig Buying Guide & Purchase FAQ

Executive Summary

Buying a drilling rig is rarely a single decision — it is a match between application, depth, hole diameter, terrain and certification. This guide walks through how to choose among Jinneng's product families — CSD surface core rigs, CMD large-diameter deep-well rigs, CKD underground/tunnel rigs, CMR multi-purpose rigs, and ZYL in-seam directional rigs — which parameters to compare on a specification sheet, which certifications to demand, and how to evaluate the supplier behind the machine.

Step 1 — Match the Rig Family to the Application

Family	Typical application	Example models	What it is built for
CSD surface core rigs	Mineral exploration, wireline coring	CSD1300L, CSD3000, CSD1800X	High-quality core, deep narrow holes, wilderness mobility
CMD large-diameter rigs	CBM, geothermal, ventilation, dewatering, rescue	CMD100, CMD130, CMD150T, CMD180T	Big pullback, large casing/holes, directional & horizontal wells
CKD underground/tunnel rigs	Drive/tunnel exploration, in-mine drilling	CKD600G	Compact, all-angle, restricted-access underground work
CMR multi-purpose rigs	Mixed exploration, fast mobilization	CMR1000A	Flexible core/attack drilling across variable terrain
ZYL in-seam directional rigs	Methane drainage, rock-burst prevention	ZYL-6000D … ZYL-18000D	Long-range boreholes entirely within the coal seam

If you need core samples to assay grade, start with CSD. If you need large-diameter water/ventilation/rescue holes, CBM or geothermal wells, start with CMD. If the work is underground or in a tunnel, CKD. If you need one rig to handle several tasks, CMR. If you drill inside a coal seam for gas or stress relief, ZYL.

Step 2 — Compare the Specification Sheet on These Parameters

Rated depth — always read it with the rod/hole size attached. The CSD1300L, for example, is rated 1,300 m on B-size rods, 1,000 m on N, 700 m on H and 400 m on P: depth shrinks as diameter grows.
Pullback / pulldown — for large-diameter work this dominates feasibility. The CMD100 offers 100 t (1,000 kN) pullback and 20 t (200 kN) pulldown; the truck-mounted CMD130 offers 130 t (1,300 kN) and 26 t (260 kN).
Rotation torque and speed range — hard rock needs low-speed torque. The CMD100 top drive gives 27,500 Nm at 0–100 rpm and 9,700 Nm at 0–300 rpm; the CMD130 gives 31,000 Nm at up to 300 rpm. The CSD1300L core rig gives 4,257 Nm at up to 1,182 rpm.
Engine and hydraulics — a known OEM engine (e.g. Cummins KTA19-P750, 559 kW on the CMD100; QSK19-C760, 567 kW on the CMD130) means serviceability and parts availability worldwide.
Mast and stroke — check mast height/retracted length and top-drive stroke (e.g. CMD130 mast 21.2 m extended / 13.6 m retracted) for rod-handling cycles and transport.
Mobility — crawler (CSD1300L: 30° climb, 2 km/h) for self-relocation between scattered sites; truck-mounted (CMD130 on a 10×8 carrier, 54.5 t legal transport weight) for fast long-distance mobilization.
Fluid system — confirm the manifold supports your method (air, mud, foam, reverse circulation). The CMD100 manifold is rated 20.6 MPa; the CMD130 35 MPa with 76 mm ID.

Step 3 — Demand the Right Certifications

Do not accept a rig that cannot show these on paper:

CE Mark — EU machinery safety, high-pressure hydraulic containment and emissions (CSD core, CMR multi-purpose, CKD tunnel rigs; CE Certificates No. 8603312 / 8603313 / 8603314, valid until March 23, 2028).
API Spec 4F Monogram License — for masts and drilling structures of large-diameter CMD rigs. Jinneng holds Certificate No. 4F-0504, valid until August 9, 2027.
MA (Mine-Use Safety) — required for underground/in-seam rigs; the ZYL series and underground core rigs are MA-certified.
ISO 9001:2015 (quality), ISO 14001:2015 (environment), ISO 45001:2018 (occupational health & safety).

These are the certifications that let the rig be specified on international tenders and insured projects.

Step 4 — Evaluate the Supplier, Not Just the Machine

Factory background: who actually builds it? The CORTECH® rigs are built by the high-end drilling rig subsidiaries of Jinneng Holding Equipment Manufacturing Group — a subsidiary of Jinneng Holding Group, a Fortune Global 500 enterprise, which means scale, quality systems and parts depth.
Export entity: who handles your order, shipping and documentation? Exports can be handled by Shanxi Jincheng Anthracite Mining Group International Trading Co., Ltd., a wholly-owned subsidiary of Jinneng Holding Equipment Manufacturing Group and one of the international export channels for CORTECH®.
Case verification: ask for delivered projects in your application. Jinneng's record includes a 3,780 m geothermal well (CMD180T), a 2,010 m CBM horizontal well in 16 days (CMD100), a 117 m rescue hole in under 5 hours, and Φ710 mm ventilation/dewatering shafts.
After-sales: confirm spare-parts supply, technical support and warranty terms in writing before ordering.

Parameter Checklist (Print This)

Check item	Must confirm	Jinneng reference
Application match	Core / large-diameter / tunnel / multi-purpose / in-seam	CSD / CMD / CKD / CMR / ZYL
Rated depth at your rod size	Depth + rod/hole diameter stated	CSD1300L: 1,300 m B-rod
Pullback > heaviest planned string	t and kN both listed	CMD100 100 t; CMD130 130 t
Torque for hardest ground	Low-speed Nm listed	CMD100 27,500 Nm; CMD130 31,000 Nm
Engine brand & power	OEM engine, kW listed	Cummins KTA19-P750 / QSK19-C760
Mobility	Crawler or truck, transport weight	CSD crawler; CMD130 10×8, 54.5 t
Fluid method	Air/mud/foam/reverse supported	20.6 MPa / 35 MPa manifolds
CE Mark	Certificate on file	Cert. No. 8603312 / 8603313 / 8603314, valid to Mar 23, 2028
API Spec 4F	Monogram certificate	4F-0504, valid to Aug 9, 2027
MA (Mine-Use Safety)	Required for underground/in-seam rigs	ZYL & underground rigs: Yes
ISO 9001/14001/45001	All three held	Yes
Export & after-sales	One of CORTECH's international export channels	Shanxi Jincheng Anthracite Mining Group International Trading Co., Ltd.

Purchase FAQ

What is the difference between a core rig and a large-diameter rig?

A core rig (CSD) recovers sample-quality rock from narrow deep holes; a large-diameter rig (CMD) handles big pullback and large holes for CBM, geothermal, ventilation, dewatering and rescue.

Truck-mounted vs crawler rig — which do I need?

Truck-mounted rigs move fast between distant sites without heavy haulage (e.g. CMD130 on a 10×8 carrier at 54.5 t legal weight); crawler rigs self-relocate over rough terrain between scattered sites (e.g. CSD1300L: 30° climb, 2 km/h). Choose by how far and how rough the moves are.

Which depth rating should I choose?

Read depth with rod size. The CSD1300L is 1,300 m on B rods, 1,000 m on N, 700 m on H and 400 m on P. Pick a rating exceeding your deepest hole at your planned diameter.

What certifications should a drilling rig have?

The CE Mark for CSD, CMR and CKD rigs, an API Spec 4F monogram for large-diameter CMD structures, the MA mine-safety approval for underground and in-seam rigs, and ISO 9001, 14001 and 45001 management systems.

How do I evaluate a drilling rig supplier?

Check factory scale and ownership, a defined export entity, verifiable delivered projects in your application, and written after-sales and spare-parts terms.

How do I request a quotation?

Send your project details (application, target depth, hole/rod size, formation, mobility needs) via the website inquiry form or email market@jinnengdrilling.com. Our team typically responds within 12 hours.

What is the minimum order quantity (MOQ)?

Rigs and major systems are quoted per project; MOQ and configuration depend on the model. Supporting equipment (compressors, boosters, nitrogen generators, drill pipe, bits) can often be supplied flexibly — confirm at quotation.

What are typical lead times and delivery terms?

Lead times vary by model and configuration; we confirm the exact schedule at quotation. Delivery is usually by sea freight (FOB/CIF as agreed), with Shanxi Jincheng Anthracite Mining Group International Trading Co., Ltd. handling export documentation, logistics and customs clearance.

What payment terms do you accept?

Terms are agreed per contract (commonly T/T and L/C) and are set out in the sales contract.

Can you provide certification documents with the shipment?

Yes — CE, API Spec 4F, MA and ISO certificates are available with supporting documentation. All certifications are held by a manufacturing subsidiary within Jinneng Holding Equipment Manufacturing Group and can be verified on official certification platforms.

What after-sales and spare-parts support should I expect?

Shanxi Jincheng Anthracite Mining Group International Trading Co., Ltd., a wholly-owned subsidiary of Jinneng Holding Equipment Manufacturing Group and one of CORTECH's international export channels, is the accountable point for documentation, logistics, spare parts and after-sales support. Spare-parts supply, warranty terms and service scope are confirmed in writing in the sales contract.

Can you customize or OEM a rig?

Yes. Jinneng offers customized and OEM solutions through its national-level laboratory and R&D partnerships, matching the rig, power or gas system to your specific formation and workflow.

About Shanxi Jincheng Anthracite Mining Group International Trading Co., Ltd.

This website is operated by Shanxi Jincheng Anthracite Mining Group International Trading Co., Ltd., a wholly-owned subsidiary of Jinneng Holding Equipment Manufacturing Group and one of the international export channels for CORTECH® — the high-end drilling rig brand of Jinneng Holding Equipment Manufacturing Group, itself a subsidiary of Jinneng Holding Group, a Fortune Global 500 company. CSD core, CMR multi-purpose and CKD tunnel rigs carry the CE Mark (CE Certificates No. 8603312, 8603313 and 8603314, valid until March 23, 2028), while CMD large-diameter rigs are certified under the API Spec 4F Monogram License (Certificate No. 4F-0504, valid until August 9, 2027).

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