444.5 to 952.5 mm Through Bore
Bore size steps 444.5, 520.7, 698.5 and 952.5 mm across the ZP175 to ZP375, the dimension that decides the largest casing or tool OD the table will pass while rotating.
Assembly Parts
Series of Rotary Table
The ZP rotary table series spans through-hole diameters from 444.5 mm on the ZP175 and ZP175-1 to 520.7 mm on the ZP205, 698.5 mm on the ZP275 and 952.5 mm on the ZP375. Maximum static load rises from 1350 kN on the ZP175 to 5850 kN on the ZP375, while all five hold a 300 r/min rotary speed and a center height between 260 and 330 mm to line up with the rig floor. The table is the rig rotating and kelly-basing element: it carries string weight, turns the drillstring and passes casing through a bore sized to the largest pipe the rig will run.
Core advantages
Designed around the operating requirement.
1350 to 5850 kN Static Load
Rated static load climbs 1350, 3150, 4500 and 5850 kN, so shallow workover floors and deep rigs carry string weight on a table matched to the hook rather than a one-size unit.
300 r/min Across the Series
Every ZP model is rated to 300 r/min, so rotary speed is selected by drive and drawworks rather than by swapping tables between a shallow and a deep hole.
Center Height 260 to 330 mm
Center height runs 260 mm on the ZP175 to 330 mm on the ZP275 and ZP375, the figure used to set the rotary beam and kelly geometry with the rig cellar height.
Gear Ratio 3.22 to 3.75
Internal gear drive ratios sit 3.75, 3.58, 3.22, 3.67 and 3.56 across the five models, translating drawworks or chain drive speed into table rpm at the chosen torque.
4172 to 8026 kg Floor Footprint
Mass runs from 4172 kg on the ZP175-1 to 8026 kg on the ZP375, the weight the substructure and skid floor are engineered to carry when the table is rigged in.
| Product | Series of Rotary Table |
|---|---|
| Product line | Assembly Parts |
| model | ZP175 | ZP175-1 | ZP205 | ZP275 | ZP375 |
| （mm） Through hole dia. | 444.5 | 444.5 | 520.7 | 698.5 | 952.5 |
| （kN） Max. static load | 1350 | 1350 | 3150 | 4500 | 5850 |
| （kN.m） Max. working torque | 13729 | 13729 | 22555 | 27459 | 32365 |
| （mm） The distance between rotary table center and centerline of chain wheel inner gear | 1118 | 1118 | 1353 | 1353 | 1353 |
| （r/min） Max. rotary speed | 300 | 300 | 300 | 300 | 300 |
| （i） Gear drive radio | 3.75 | 3.58 | 3.22 | 3.67 | 3.56 |
| (mm） Center height | 260 | 270 | 318 | 330 | 330 |
| A×B×C（mm） Overall size | 1920×1280×566 | 1940×1280×585 | 2292×1475×668 | 2391×1670×685 | 2468×1810×718 |
| （kg） weight | 4172 | 3888 | 5530 | 6163 | 8026 |
Application
Where this equipment is used.
- Rotating the drillstring and carrying string weight on rig floors, from the ZP175 at 444.5 mm bore to the ZP375 at 952.5 mm.
- Casing running through a bore sized to the largest pipe the rig will handle.
- Kelly-drive duty at 300 r/min across the series with static loads from 1350 kN to 5850 kN.
- Model selection by rig class: ZP175/ZP175-1 for workover, ZP205/ZP275 for drilling, ZP375 for the deep fleet.
- Retrofit and replacement on existing rigs and new-build supply.
- Floor alignment with centre heights of 260–330 mm to match the rig deck.
Next step
Send the operating requirement.
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryConfiguration
Options for a matched equipment scope.
Available configurations can be matched to the equipment model, operating conditions and project requirements.
- Model: ZP175 through ZP375 selected against the string weight and casing diameter.
- Bore and torque: through-hole diameter and working torque confirmed against the drilling programme.
- Drive interface: gear ratio and chain or independent drive fitment matched to the drawworks layout.
- Floor fit: centre height and overall footprint matched to the rig floor.
- Spares: bearing sets and seals listed for the operating period.
- Documents and after-sales for Series of Rotary Table: operation manuals, factory test report and first-period spares are included; on-site commissioning and crew training can be arranged.
Buyer questions
Frequently asked about this equipment.
Questions about the rotary table series cover through-bore size, static load and the ZP models.
What is the core function of Rotary Table in oilfield drilling?
The rotary table is the core rotating and load-bearing component of drilling rigs. It mainly provides stable rotary torque to drive drill string and drill bit for rock breaking and drilling, bears the total weight of downhole strings, and assists casing running and downhole salvage operations, being an indispensable key unit for wellbore construction.
How to select the correct rotary table model?
Model selection is set by the string weight the table must carry and the largest casing or tool OD it must pass, not by a generic tonnage label. The ZP175 and ZP175-1 (444.5 mm bore, 1350 kN static) fit workover and shallow drilling. The ZP205 (520.7 mm bore) and ZP275 (698.5 mm bore) cover medium-depth conventional drilling. The ZP375 (952.5 mm bore, 5850 kN static) is the heavy end for deep-drilling programmes and large-casing runs. Send the planned casing OD, the maximum string weight and the rig center-height match and we quote the exact model from the five in the range.
How does the rotary table ensure long-term stable operation?
The table is an integral cast-steel housing with hardened gear sets, sized for the impact and torsion of heavy casing and drill-string work. Multi-layer seals and a circulating lubrication loop keep drilled solids out of the gear train, and the bearing arrangement is rated for −40 to +55℃ ambient. State the climate and mud type at order time so the seal and lubricant spec matches.
Can the equipment adapt to ultra-deep well high-load working conditions?
Yes. The ZP375 (952.5 mm bore, 5850 kN static) is the heavy end of the range for deep-drilling and large-casing runs. The housing and gear sets are reinforced for continuous torque rather than intermittent load, and the bearing arrangement is matched to the cellar height and kelly geometry. Send the planned casing OD and maximum string weight and the model is quoted from the five in the range.
Can parameters and supporting configurations be customized?
Yes. The configuration is settled against the rig floor before the order: model across the ZP range (444.5 mm through-bore on the ZP175 to 952.5 mm on the ZP375), gear ratio and sealing grade, center height matched to the cellar, and the drive-side interface are fixed to the drawworks layout, then written into the quotation and the factory test report.
Procurement information
Ordering this equipment.
Commercial terms are confirmed in the quotation for the exact configuration, quantity and destination.
Certification & standards
Built to API Spec 7K at the Jingzhou plant under ISO 9001:2015 quality management; each ZP table is run at the 300 r/min rating and proof-checked for static load against the model figure before dispatch. The certificate scope is listed in the quotation.
Documentation
Component manuals, dimensional drawings and NDT reports are supplied; the mounting interface dimensions are provided for integration with the client's rig.
Lead time
Confirmed in the quotation according to configuration, quantity and destination.
Warranty & after-sales
Manuals, conventional spare parts and remote technical guidance are included; on-site commissioning and operator training can be arranged on request.
Payment & delivery
Payment schedule, Incoterms, port and packaging are agreed in the sales contract.
Spare parts
A recommended spare-parts list for the first operating period is provided with the quotation.
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