Standard No.:	GB/T 32994-2026
English Name:	Rotary kiln for cement industry
Chinese Name:	水泥工业用回转窑
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR, SAC
Issued on:	2026-04-30
Implemented on:	2026-11-1
Status:	to be valid
Superseding:	GB/T 32994-2016 Rotary kiln for cement industry
Target Language:	English
File Format:	PDF
Word Count:	12500 words
Translation Price(USD):	375.0
Delivery:	via email in 1~5 business day

GB/T 32994-2026 Rotary kiln for cement industry English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered. ICS CCS National Standard of the People's Republic of China ‌GB/T 32994-2026 Rotary kiln for cement industry 水泥工业用回转窑 Issue date: 2026-04-30 Implementation date: 2026-10-01 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China the Standardization Administration of the People's Republic of China Contents Foreword 1 Scope 2 Normative References 3 Terms and Definitions 4 Type and Basic Parameters 5 Technical Requirements 6 Test Methods 7 Inspection Rules 8 Marking, Packaging, Transport and Storage Rotary kiln for cement industry 1 Scope This document specifies the type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transport and storage for rotary kilns for the cement industry. This document applies to the design, manufacture and acceptance of rotary kilns for the cement industry. 2 Normative References The following documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 700-2006 Carbon structural steels GB/T 1175-2018 Casting zinc alloys GB/T 1176-2013 Cast copper and copper alloys GB/T 1184-1996 Geometrical tolerancing — General tolerances GB/T 1800.2-2020 Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes — Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts GB/T 1804-2000 General tolerances — Tolerances for linear and angular dimensions without individual tolerance indications GB 2894 Safety colours and safety signs GB/T 2970-2016 Method for ultrasonic testing of thicker steel plates GB/T 3274-2017 Hotrolled plates, sheets and strips of carbon structural steels and high strength low alloy structural steels GB/T 3766 Hydraulic fluid power — General rules and safety requirements for systems and their components GB/T 4238-2015 Heatresisting steel plate, sheet and strip GB/T 5117 Nonalloy steel and fine grain steel electrodes GB/T 5118 Thermalresistant steel electrodes GB/T 5226.1 Electrical safety of machinery — Electrical equipment of machines — Part 1: General requirements GB/T 8110 Solid wires for gas shielded arc welding of nonalloy and fine grain steels GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB/T 9439-2023 Grey iron castings GB/T 9444-2019 Magnetic particle testing of steel castings and iron castings GB/T 10095.1-2022 Cylindrical gears — ISO system of flank tolerance classification — Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth GB/T 11345-2023 Nondestructive testing of welds — Ultrasonic testing — Techniques, testing levels and assessment GB/T 13306 Nameplates GB/T 13819 Copper and copper alloy castings GB/T 16746 Zinc alloy castings GB/T 26952-2025 Nondestructive testing of welds — Magnetic particle testing — Acceptance levels GB/T 29712-2023 Nondestructive testing of welds — Ultrasonic testing — Acceptance levels GB/T 33083-2016 Specification for large carbon structural steel forgings GB/T 33084-2016 Specification for large alloy structural steel forgings GB/T 37400.6-2019 Heavy mechanical general technical specification — Part 6: Steel castings GB/T 37400.7 Heavy mechanical general technical specification — Part 7: Repair welding of steel castings GB/T 37400.14-2019 Heavy mechanical general technical specification — Part 14: Nondestructive testing of steel castings GB/T 37400.15-2019 Heavy mechanical general technical specification — Part 15: Nondestructive testing of steel forgings GB/T 38275-2019 Lubrication system — Inspection specification GB/T 50561 Standard for installation engineering construction and acceptance of building materials industry equipment JB/T 6403-2017 Specification for large heat resistant steel castings JB/ZQ 4006-2006 Limits and fits — Tolerances and fits for holes and shafts with sizes above 3150 mm up to 10000 mm JC/T 402 Technical condition for painting and rust prevention of cement machinery JC/T 406 Technical condition for packaging of cement machinery JC/T 532 General technical condition for steel welding components of building materials machinery JC/T 2196-2013 Specification for using refractory materials in cement rotary kiln 3 Terms and Definitions No terms and definitions are defined in this document. 4 Type and Basic Parameters 4.1 Type designation The type designation method for rotary kilns is as follows: Example 1: A rotary kiln with an inner diameter of 4.8 m and a kiln body length of 72 m, conforming to this document. Marking: Rotary kiln for cement industry GB/T 32994Y 4.8 × 72 Example 2: A rotary kiln with an inner diameter of 6 m, an expanded inner diameter of 6.4 m, and a kiln body length of 90 m, conforming to this document. Marking: Rotary kiln for cement industry GB/T 32994Y 6/6.4 × 90 4.2 Basic parameters The basic parameters of a rotary kiln for the cement industry (hereinafter referred to as “rotary kiln”) are given in Table 1. 5 Technical Requirements 5.1 Basic requirements 5.1.1 Rotary kiln products shall comply with the provisions of this document and shall be designed and manufactured according to approved design drawings and technical documentation. 5.1.2 The limit deviations for undimensioned tolerances on machined surfaces shall comply with grade m of GB/T 1804-2000. The limit deviations for undimensioned tolerances on nonmachined surfaces shall comply with grade v of GB/T 1804-2000. The undimensioned geometrical tolerances for machined surfaces shall not be less than grade K of GB/T 1184-1996. 5.1.3 Welded components shall comply with the provisions of JC/T 532. 5.1.4 Carbon steel electrodes, lowalloy steel electrodes and welding wires shall comply with the provisions of GB/T 5117, GB/T 5118 and GB/T 8110, respectively. 5.1.5 The lining design for the rotary kiln shell shall comply with the provisions of JC/T 2196-2013. For a rotary kiln used for coprocessing, anticorrosion or isolation measures should be taken between the shell and the lining. 5.1.6 The forced circulation lubrication system for the main reducer shall comply with the provisions of GB/T 38275-2019. 5.1.7 The hydraulic system for the thrust roller shall comply with the provisions of GB/T 3766. 5.2 Complete machine requirements 5.2.1 The basic parameters of a rotary kiln shall comply with the provisions of Table 1 or the design drawings and relevant technical documentation. 5.2.2 The rotational speed of the main drive of the rotary kiln shall be adjustable, with an adjustment ratio not less than 1:10. 5.2.3 Heat insulation devices shall be provided between the support roller bearing assemblies, thrust roller device, transmission device and the shell. 5.2.4 Lubrication devices shall be provided on the contact surfaces between the tyre and the support rollers and the thrust roller. Lubrication devices should also be provided between the tyre and the backing plates.